Muh. Jamil Barambangi, sari, A. I. S. and Herna (2026) “The Numbered Heads Together Type Cooperative Learning Model on Students’ Understanding of Mathematical Concepts in Grade VIII Mts Negeri 1 Polewali Mandar”, Rangkiang Mathematics Journal, 5(2), pp. 117–124. doi: 10.24036/rmj.v5i2.132.