S, Melina A
S. A. J, Fatihah Suci, Department of Physic Education, Universitas Mulawarman, Samarinda, Indonesia
Salwa, G
Sani, Ridwan Abdullah
Sari, Monica Prima, Department of Science Education, Universitas Negeri Padang (Indonesia)
Sidabutar, Hudson
Sihite, Elvina Irawati
Sihombing, R A
Silaban, Irene M.
Silitonga, M W
Simamora, John Adeo
Simanjuntak, L A
Simanjuntak, Mariati P, Department of Physics, Universitas Negeri Medan, Medan 20221, Indonesia (Indonesia)
Simanjuntak, Mariati Purnama, Universitas Negeri Medan (Indonesia)
Simanjuntak, Mariati Purnama, Universitas Negeri Medan
Simanjuntak, Mariati P
Simanjuntak, P R N
Simanullang, M Y
Simanullang, Meiranda
Simatupang, Halim
Simatupang, Halim, Department of Biology, Universitas Negeri Medan, Medan 20221, Indonesia (Indonesia)
Simatupang, Halim, Department of Science Education, Universitas Negeri Medan
Simatupang, Sehat, Universitas Negeri Medan (Indonesia)
Simatupang, Zulkifli, Universitas Negeri Medan (Indonesia)
Sinaga, Yuni Evany, Universitas Negeri Medan (Indonesia)
Sinurat, Johan, Medan State University (Indonesia)
Sipayung, Mariaty
Siregar, A
Siregar, Koriatul J
Siregar, Nurdin, Universitas Negeri Medan (Indonesia)
Sitanggang, W
Sitompul, Ermy Veronica
Sitompul, Nopita
Sitompul, Nopita, UNIMED (Indonesia)
Sitompul, Reza T.D., Medan State University (Indonesia)
Situmorang, Lasria Lestari, Universitas Negeri Medan (Indonesia)
Sudarma, Teguh Febri, Department of Physics Education, Universitas Negeri Medan (Indonesia)
Sudrajat, Ajat
Suhita, Delpima, Prodi teknik mesin Universitas Krisnadwipayana (Indonesia)
Sulaeman, Nurul Fitriyah
Suriani, Cicik
Susanti, Nora
Suyanti, Retno Dwi
Syam, Muliati, Univesitas Mulawarman (Indonesia)
Syam, Muliati, Department of Physic Education, Universitas Mulawarman, Samarinda, Indonesia