TAMBUNAN, Damelina Basauli; KODRAT, David Sukardi; HARTONO, Wendra. Peningkatan Profesionalisme bagi Pelayan di Lingkungan Gereja HKBP Indonesia Bagian Timur . Jurnal Leverage, Engagement, Empowerment of Community (LeECOM), [S. l.], v. 5, n. 2, p. 129–138, 2023. DOI: 10.37715/leecom.v5i2.3856. Disponível em: https://ojs.somebut.my.id/index.php/LeECOM/article/view/3856. Acesso em: 19 feb. 2026.