PARIDJO. Suatu Solusi Mengatasi Kesulitan Belajar Matematika. Cakrawala: Jurnal Pendidikan, [S. l.], v. 2, n. 1, p. 5–11, 2006. DOI: 10.24905/cakrawala.v2i1.22. Disponível em: https://cakrawala.upstegal.ac.id/index.php/cakrawala/article/view/22. Acesso em: 20 dec. 2025.