Satu, S.-A. 2020. Preaching and Teaching Sound Doctrine Based on Christocentric Doctrine by Church Leaders for the Transformation of Church Members. Angelion: Jurnal Teologi dan Pendidikan Kristen. 1, 1 (Jun. 2020), 47–65. DOI:https://doi.org/10.38189/jan.v1i1.41.