Nopen, Pikri. “The Effectiveness of PowerPoint-Assisted Classical Guidance Services in Enhancing Students’ Learning Motivation”. Journal of Psychology and Education Counseling (JPEC) 1, no. 2 (November 15, 2025): 59–66. Accessed April 2, 2026. https://journal.cannity.id/index.php/jpec/article/view/76.