LATIVAH, hafni; NASUTION, A. F. .; HASIBUAN, D. F. .; TANTRI, A. . SYSTEMS APPROACH TO LEARNING AT PRIMARY SCHOOL LEVEL. Cemara Education and Science, [S. l.], v. 1, n. 4, 2023. DOI: 10.62145/ces.v1i4.40. Disponível em: https://www.cemarajournal.com/journal/index.php/ces/article/view/40. Acesso em: 16 apr. 2026.