Joice Mahe Dece Vicce Wokas, Trang, I., Merinda H. Ch. Pandowo and Genita Gracia Lumintang 2026. Christian Leadership Spirituality: Realizing Effective and Sustainable Church Management in the Evangelical Christian Church in Minahasa (GMIM). International Journal of Economics, Business and Innovation Research. 5, 04 (Jun. 2026), 1056-1072. DOI:https://doi.org/10.63922/ijebir.v5i04.4073.