TORANG SIREGAR; HARAHAP, A.; ARISMAN, A.; RANGKUTI, H. H.; ISKANDARSYAH; HARAHAP, I. S.; ARDIAN, R.; DAULAY, S.; BATUBARA, Z. What Makes it Special? : Content Knowledge for Teaching. International Journal of Applied Educational Research (IJAER), [S. l.], v. 1, n. 1, p. 21–40, 2023. DOI: 10.59890/ijaer.v1i1.405. Disponível em: https://journal.multitechpublisher.com/index.php/ijaer/article/view/405. Acesso em: 1 may. 2026.