Manalu, M.F.J. 2024. Faith Growing in Action:: Implications of John Locke’s Tabula Rasa Concept and Ecological Education for HKBP Sunday School Children. PEADA’: Jurnal Pendidikan Kristen. 5, 1 (Jun. 2024), 1-14. DOI:https://doi.org/10.34307/peada.v5i1.175.