S, Sabaruddin, Islamic University of Northern Sumatra (Indonesia)
Safarini, Yamiati, Universitas Mercu Buana (Indonesia)
Salleh, Mohd Azul Mohamad, Universiti Kebangsaan Malaysia (Malaysia)
Salmaniah Siregar, Nina Siti, Universitas Medan Area (Indonesia)
Sari, Genny Gustina, Riau University (Indonesia)
Sartika, Maini, Universitas Syiah Kuala (Indonesia)
Satyawan, Ignatius Agung, Sebelas Maret University
Sugiyanto, Dyah Rahmawati, the Indonesian Institute of Sciences (LIPI)
Supriyadi, Dedi, Universitas Bengkulu (Indonesia)
Syam, Hamdani M., Universitas Syiah Kuala (Indonesia)

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