ROSIDA TIURMA MANURUNG; ABDUL RAHMAT. EFFECTIVENESS AND EFFICIENCY TEACHING AND LEARNING PROCESSWITH COURSE LEARNING SYSTEM. Elementary Education Online, [S. l.], v. 20, n. 4, p. 1141–1146, 2023. Disponível em: https://ilkogretim-online.org./index.php/pub/article/view/5117. Acesso em: 5 jul. 2024.