Panjaitan, Nella Mariana, Kristiani Yanti Kana, and Delf G. Kalalo. “A Faith-Innovation-Service Model for Christian Educational Entrepreneurship in Indonesia”. Indonesian Journal of Christian Education and Theology 5, no. 2 (May 30, 2026): 139–148. Accessed June 3, 2026. https://journalijcet.my.id/index.php/ijcet/article/view/16.