[1]
Napitupulu, K. , Munthe, B. and Siregar, N. 2025. The Effect of Reinforcement Skills on Increasing the Learning Motivation of Grade XI Students in Christian Religious Education . PIJAR: Jurnal Pendidikan dan Pengajaran . 4, 1 (Nov. 2025), 68–79. DOI:https://doi.org/10.58540/pijar.v4i1.1124.