TUMPAL RICHARDO SIRAIT. Pengaruh Katekisasi Sidi terhadap Perubahan Perilaku Remaja Kristen di HKBP Kobun Kopi. Bulletin of Community Engagement, [S. l.], v. 4, n. 2, p. 265–270, 2024. DOI: 10.51278/bce.v4i2.1401. Disponível em: https://attractivejournal.com/index.php/bce/article/view/1401. Acesso em: 18 apr. 2026.