Amin , Nazrial. “Methods Of Awarding Penalties And Rewards For Learning Achievement Of Grade Viii Smp Panca Budi Medan”. Jurnal Pendidikan dan Konseling (JPDK) 4, no. 6 (November 23, 2022): 5962–5973. Accessed January 6, 2025. https://journal.universitaspahlawan.ac.id/index.php/jpdk/article/view/9240.