“Missiological Study of the Responsibilities of Elders and Deacons to Increase Religiousness in the GMIM Efrata Congregation”. KARDIA: Jurnal Teologi Dan Pendidikan Kristiani, vol. 4, no. 2, Aug. 2026, pp. 138-52, https://doi.org/10.69932/kardia.v4i2.76.