1.
Matondang K, Saragih RMB, Rina Sari. PENERAPAN PENDEKATAN OPEN ENDED DALAM PEMBELAJARAN MATEMATIKA. JKPM [Internet]. 2023 May 26 [cited 2024 Jul. 23];2(2):65-70. Available from: https://univamedan.ac.id/ejurnal/index.php/jkpm/article/view/469