Obstacles In Learning at SDN 21 Sungai Kakap During The Covid 19 Pandemic. Journal Sport Academy, Indonesia, ID, v. 1, n. 1, p. 40–46, 2022. DOI: 10.31571/jsa.v1i1.1. Disponível em: https://jurnal.jsa.upgripnk.ac.id/index.php/jsa/article/view/1. Acesso em: 18 jun. 2026.