YELDAWATI Y. PENINGKATAN AKTIVITAS BELAJAR MATEMATIKA MELALUI PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE STAD. EDUCATOR [Internet]. 2022Mar.15 [cited 2026Jan.26];2(1):35-46. Available from: https://www.jurnalp4i.com/index.php/educator/article/view/1001