Aritonang, E. “ANALYSIS OF PROBLEMS FACED BY THE TUTORS IN THE LEARNING PROCESS AT PKBM ADA TEROLIH IN SALAK, PAKPAK BHARAT DISTRICT”. Jurnal RASI, vol. 4, no. 1, Februari 2024, hlm. 1-9, https://ejournal.umbandung.ac.id/index.php/rasi/article/view/125.