Afianti, Nurfaidah. “The Effect of Head NumberTogether (NHT) Learning Model on Student Mathematics Learning Outcomes”. Jurnal Axioma : Jurnal Matematika dan Pembelajaran 3, no. 2 (July 28, 2018): 168–175. Accessed April 27, 2024. https://ejurnal.uij.ac.id/index.php/AXI/article/view/333.