Mixing Educational System: Progressive Learning at SMA Muhammadiyah PK Surakarta. International Journal of Religion, [S. l.], v. 5, n. 4, p. 374–383, 2024. DOI: 10.61707/8k25xh50. Disponível em: http://ijor.co.uk/ijor/article/view/3590.. Acesso em: 31 jul. 2026.