Bahagia B, wibowo R, Mangunjaya FM, Susetyo B. Social, Sains and Environment Learning Before Covid-19 and The Learning Amid Covid-19 in Nursery Student. basicedu [Internet]. 2021 Oct. 22 [cited 2024 Jul. 22];5(6):5280-7. Available from: https://jbasic.org/index.php/basicedu/article/view/1511