“PENGARUH MODEL PEMBELAJARAN KOOPERATIF TIPE NUMBERED HEAD TOGETHER (NHT) TERHADAP KEMAMPUAN KOMUNIKASI MATEMATIS SISWA MAN 1 MEDAN”. JOURNAL OF SCIENCE AND SOCIAL RESEARCH 9, no. 1 (February 15, 2026): 667–672. Accessed July 10, 2026. https://jurnal.goretanpena.com/index.php/JSSR/article/view/5573.