Sugiyadnya, I.K.J., Wiarta, I.W. and Putra, I.K.A. 2019. Pengaruh Model Pembelajaran Kooperatif Learning Tipe NHT terhadap Pengetahuan Matematika. International Journal of Elementary Education. 3, 4 (Oct. 2019), 413–422. DOI:https://doi.org/10.23887/ijee.v3i4.21314.