Syahputri D, Ananda R. The Influence of Learning Models Cooperative Type Numbered Heads Together (NHT) on Learning Outcomes of Mathematics Students SMP Muhammadiyah 01 Medan . J.Math.Instr.Soc.Res.Opin. [Internet]. 2025 Sep. 30 [cited 2026 Aug. 27];4(3):959-70. Available from: https://journal-gehu.com/index.php/misro/article/view/730