The Influence of the Islamic Boarding School Environment on the Academic Achievement of Students from Sumatra. IJIBS, [S. l.], v. 4, n. 1, p. 11–24, 2026. DOI: 10.35719/Ijibs.V4i1.72. Disponível em: https://ijibs.lppmuinkhas.com/ijibs/article/view/72. Acesso em: 26 jul. 2026.