TORANG SIREGAR; HARAHAP, Awal; ARISMAN, Ahmad; RANGKUTI, Hariman Hasayangan; ISKANDARSYAH; HARAHAP, Indra Saputra; ARDIAN, Risky; DAULAY, Sulhan; BATUBARA, Zainuddin. 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: 7 jul. 2026.