Maurit Simanjuntak, Timotius Tan, and Timotius Bakti Sarono. 2024. “Impact Of Koinonia, Diakonia, and Marturia On Congregational Satisfaction at HKBP Cijantung Church”. International Journal of Christian Education and Philosophical Inquiry 1 (4):16-27. https://doi.org/10.61132/ijcep.v1i4.70.