Damelina Basauli Tambunan, Denpharanto Agung Krisprimandoyo and Wendra Hartono (2024) “Peningkatan Kompetensi Guru Sekolah Minggu di Lingkungan Gereja HKBP Resort Surabaya Selatan”, Jurnal Leverage, Engagement, Empowerment of Community (LeECOM), 6(1). doi: 10.37715/leecom.v6i1.4427.