Rasmitadila, R.; Aliyyah, R. R.; Rachmadtullah, R.; Samsudin, A.; Syaodih, E.; Nurtanto, M.; Tambunan, A. R. S. The Perceptions of Primary School Teachers of Online Learning During the COVID-19 Pandemic Period: A Case Study in Indonesia. J Ethn Cult Stud 2020, 7, 90-109.