Lutviana, I., Kartono, K., & Isnarto, I. (2020). Pengaruh model problem based learning dengan immediate feedback assesment technique terhadap pencapaian komunikasi matematis. PRISMA, Prosiding Seminar Nasional Matematika, 3, 247-251. Retrieved from https://journal.unnes.ac.id/sju/prisma/article/view/37601