Minarista Limbong E, Mnurung SL. Peningkatan Kemampuan Komunikasi Matematis Siswa Melalui Model Pembelajaran Kooperatif Tipe Numbered Head Together Berbantuan Video Pembelajaran Di Smp 6 Kisaran. JCS [Internet]. 2022Oct.26 [cited 2024Dec.22];1(3):451-9. Available from: https://jcs.greenpublisher.id/index.php/jcs/article/view/68