RATNAWATI, A.; JANUAR TANUDJAJA, D. .; EDWIN, E. Profil Guru Sekolah Minggu di GBI Rock Bellezza . Kingdom, [S. l.], v. 1, n. 1, p. 46–57, 2021. Disponível em: https://ojs.sttkingdom.ac.id/index.php/Theo/article/view/9. Acesso em: 5 nov. 2025.