JOICE MAHE DECE VICCE WOKAS; TRANG, I.; MERINDA H. CH. PANDOWO; GENITA GRACIA LUMINTANG. 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, v. 5, n. 04, p. 1056-1072, 14 Jun. 2026.