The publishing and editorial teams would like to thank the following, for their invaluable service as 2021 reviewers for this journal. We are very grateful for the contributions made. With their help, the journal has been able to publish such high-quality articles:

• Abbasi, P
• Abdul Manaf, Marina
• Abolurin, O
• Aboul-Enein, B
• Abramova, L
• Abu-Mweis, Suhad
• Abu-Salem , Ferial
• Abukhader, Majed
• Adachi, N
• Adegbola, A
• Adeyemi-Doro, Abimbola
• Adithya, B
• Aeri, B
• Africa, L
• Aguilar, L
• Aikawa, Y
• Al Sayyed, Hiba
• Al-Jammaas, Oday
• Al-Jawaldeh, Ayoub
• Al-Mana, N
• Alam, M
• Alhaj, Omar 
• Althunibat, O
• Ameer, K
• Angelino, D
• Ansary, J
• Apprey, Charles
• Arendt, E
• Aridi, A
• Arlappa, N
• Arráez, S
• Ashan, H
• Astuti, D
• Atalay, B
• Avelar, D
• Ayensu, J
• Ayoub, M
• Azar, P
• Aziz, Abdul Rashid
• B, Lokesh
• Ban, Z
• Bartosz, G
• Baser, F
• Bashir, C
• Battino, M
• Behrooz, Maryam
• Belarmino, A
• Berhanu, B
• Bessel, E
• Betoret, N
• Bhowmik, S
• Blades, M
• Boccia, Flavio
• Boddy, G
• Bou-Mitri, Christelle
• Bouderbala, Sherazede
• Bracesco, N
• Bragazzi, N
• Brugliera, L
• Buchholz, A
• Budge, S
• Burillo, S
• Burke, B
• Calderón De La Barca , A M
• Cardoso, C
• Caridi, F
• Carr, K
• Carrillo, C
• Cetinkaya, T
• Chandima, S
• Charrondiere, R
• Chen, B
• Chen, J
• Chin Xuan, Tan
• Chis, S
• Cicero, A
• Clara, L
• Correa, M
• Cortes, E
• Costa, Gilmar Freire
• Dainty, J
• Dalrymple, I
• Damayanti,  K
• De Negri, Sônia
• Demsar, L
• Denzer, M
• Di Cairano, M
• Di Vaio, A
• Dorsamy, V
• Duran, S
• Dutta, C
• El Enshasy, H
• El-Ghorab, A
• El-Missiry, M
• El-Sayed, Wael
• Elio, I
• Elmacioglu, F
• Elsahoryi, N
• Esquivel, M
• Evivie, S
• Farhadnejad, Hossein
• Faris, Mo'ez Al-Islam
• Farokhi, F
• Farrar, Mark
• Fekadu, Habtamu
• Fikry, M
• Fitzgerald, J
• Flieh, S
• Flores-Barrantes, P
• Freitas, D
• G. R., Jayadevan
• Galyean, S
• Garcia, P
• Ge, Sheng
• Gelfand, A
• Gharibzahedi, S M T
• Gholami, S
• Ghorbani, Zeinab 
• Gifari, N
• Golachowska, M
• Goswami-Sewell, D
• Graf, C
• Guest, D
• Gunnarsdottir, I
• Guo, S
• Gupte, A
• Habibi, F
• Haidarah, Hasan
• Hakeem, R
• Hallmann, E
• Hendrich, S
• Hettiaratchi, U
• Hewko, S
• Holdoway, A
• Horritkhah, E
• Hssaiini, L
• Huang, H
• Hussain, A
• Ibrahim, Salam
• Ibrahim, Z
• Ijarotimi, Oluwole
• Ilvenil, S
• Indrianingsih, A W
• Iqbal, Muhammad Waheed
• Istrati, D
• Iuliana, V
• Jahrami, Haitham 
• Jehi, T
• John, R
• Joshy, C
• Jouki, M
• Kanwal, A
• Kassim, N
• Katib, A
• Kaur, Devinder
• Kausar, T
• Keirns, N
• Kelly, R
• Kenz, M
• Keramat, A
• Kerbo, A
• Khadidj, C
• Khalifa, I
• Khan, I
• Khanji, Aya
• Khemiri, I
• Kiritsakis, A
• Koc, N
• Koo, B S
• Kooshki, Fateme
• Koriem, Khaled
• Koroglu, O
• Krouf, Djamil
• Kuan, G
• Kumar, M
• Kumar, Pavan
• Kundu, S
• Kurda, L
• Kusrini, I
• Laerum, E
• Lam, M
• Lange, E
• Lee, Y
• Leon, L
• Lima, S
• Lombardo, Mauro
• Lombardo, Mauro
• Lubowiecki-Vikuk, A
• Lutterodt, H
• Ma, G
• Macit, Melahat Sedanur
• Maheshwari, Bhunesh
• Mahfuz, S
• Mahmodi, R
• Maky, M
• Maleyki, A
• Mamo, H
• Manaf, Z
• Manjula, H
• Maqsood, Sajid
• Masa Kagawa, Masa Kagawa
• Mathes, C
• Mckenna, R
• Mehta, Bhavbhuti
• Memon, N
• Miocinovic, J
• Mirfatahi, M
• Mogeh, H
• Mogre, V
• Mohammed, R
• Moitra, Panchali
• Morais, S
• Moreno, M
• Moreno, R
• Moretti, R
• Mousa, E
• Mphwanthe, M
• Muhammad, Harry
• Muhammad, Z
• Mukisa, Ivan
• Munekatta, P
• Murdaca, Giuseppe
• Murthy, K N
• Mustapha, D
• Navaei, N
• Nayga, Rodolfo
• Neeliah, S
• Nemes, A
• Niazkar, Hamid
• Nieto-Yanez, O
• Nighojkar, A
• Noori, Seyyed Mohammad Ali
• Nouri, Mehran
• Nutsuda, S
• Nyambe, H
• Ocsoy, I
• Ogundijo, D
• Ohkubo, T
• Ojo, A
• Olena, M
• Olguin, Maria
• Oliveira, Keciany
• Omurtag, I
• Osorio, E
• Oyedeji, A
• Oyeyinka, Samson
• Özçelik, Ayşe Özfer
• Ozdemir, D
• Ozer, C
• Pakhare, A
• Pandiselvam, R
• Pandohee, J
• Panghal, Anil
• Papadaki, A
• Park, H
• Paternez, A
• Pathera, Ashok
• Paucar, L
• Paula, B
• Peiris, D
• Pelic, M
• Penarrieta, M
• Percival, S S
• Perez, J
• Peter, E
• Pham, H
• Pinho, M
• Pop, C
• Popov, S
• Pourahmad, J
• Prinya, W
• Priyashnatha, H
• Qasrawi, R
• Rabiou, M
• Rainville, A
• Rajesh, E
• Ramadan, MF
• Ramao, B
• Ramezan, Y
• Ramirez, A
• Ramos, A
• Ramzan, R
• Rashidi, O
• Rehman, M
• Reque, P
• Reza, D
• Rhodes, J
• Rivera, N
• Rivera, R
• Rojhani, Arezoo
• Ropciuc, S
• Rosario, M
• Roshini, M
• Roso, M
• Ruiz, C
• Saadeldin, I
• Saber, A
• Safe, S
• Samoggia, A
• Sanchez, L
• Sanlier, N
• Santos, F
• Schellekens, H
• Schoenlechner, R
• Sedumedi, C
• Serhan , Mireille 
• Shah, Jigna
• Shaheen, H
• Sharanagat, V
• Sharma, M
• Sharma, Rajan
• Shehzad, Aamir
• Shelley, M
• Sholeye, Oluwafolahan
• Shuvo, Suvasish Das
• Simon, E
• Singh, A
• Singh, Raghvendar
• Skrypnik, D
• Slobodianik, N
• Sobhani, Z
• Soto, M
• Stan, L
• Suksomboon, N
• Sulejmani, E
• Sultana, Marjia
• Sun, G
• Sun, Y
• Syauqy, A
• Syed, N
• Tafesse, T
• Tayyem, Reema
• Tebha, S
• Teixeira, Alfredo Jorge Costa
• Temesgen, G
• Tiao, M
• Todorov, S
• Torres, M
• Toupchian, O
• Trajkovska, A
• Umaraw, Pramila
• Unsal, V
• Vaghef, E
• Vahid, F
• Valero, E
• Valizadeh, S
• Van Gent, Maya
• Van Hoang, D
• Vatanmakanian, M
• Vatsa, A
• Verma, Arun
• Vieira, A
• Vijay, V
• Wagh, Rajesh
• Wajihah, S
• Wang, L
• Wang, Y
• Wang, Y
• Watson, I
• Webb, Ann
• Wei, S
• Wesley, R
• Wlodarek, D
• Wouw, M
• Wunderlich, S
• Xu, C
• Xu, M
• Yang, C
• Yang, W
• Yim, H S
• Yılmaz, Sine
• Yu, B
• Zago, L
• Zaman, M
• Zamanian, M
• Zang, J
• Zaragoza, A
• Zhang, D
• Zhang, M
• Zhou, B
• Zhu, F
• Zhu, M
• Zhuang, Y