1.
Yuwono MR, Syaifuddin MW. Pengembangan problem based learning dengan assessment for learning berbantuan smartphone dalam pembelajaran matematika. BetaJTM [Internet]. 2017 Nov. 24 [cited 2021 Sep. 25];10(2):184-202. Available from: https://jurnalbeta.ac.id/index.php/betaJTM/article/view/116