Imran, Septianus, u. a. „PERAN GURU KRISTEN DALAM PEMBELAJARAN MATEMATIKA DI SUATU SEKOLAH KRISTEN DI TANGERANG [CHRISTIAN TEACHER’S ROLE IN LEARNING MATHEMATICS AT A CHRISTIAN SCHOOL IN TANGERANG]“. JOHME: Journal of Holistic Mathematics Education, Bd. 2, Nr. 2, Juni 2019, S. 71-82, doi:10.19166/johme.v2i2.1683.