Paridjo. “Suatu Solusi Mengatasi Kesulitan Belajar Matematika”. Cakrawala: Jurnal Pendidikan 2, no. 1 (May 1, 2006): 5–11. Accessed December 20, 2025. https://cakrawala.upstegal.ac.id/index.php/cakrawala/article/view/22.