Jafnihirda L, Husna Arsyah R. Peningkatan Aktivitas Belajar dengan Model Pembelajaran Number Head Together . jpti [Internet]. 2022 Apr. 30 [cited 2026 Sep. 26];9(1):13-8. Available from: https://jpti-upiyptk.org/ojs/index.php/jpti/article/view/pti