Lubis, Irda, Eka Hasibuan, and Rusydi Ananda. “Pengaruh Model Cooperative Learning Berbasis Mind Mapping Terhadap Pemahaman Konsep Matematis Siswa Kelas X MAPN 4 Medan”. Jurnal Cendekia : Jurnal Pendidikan Matematika 9, no. 3 (September 17, 2025): 1984-1494. Accessed October 1, 2025. https://www.j-cup.org/index.php/cendekia/article/view/4336.