Laoli A, Harefa AO. STUDI MODEL PEMBELAJARAN PROBLEM SOLVING TERHADAP MOTIVASI BELAJAR MATEMATIKA. j.tunas.pendidik [Internet]. 2023 Oct. 9 [cited 2024 Jul. 3];6(1):243-51. Available from: https://ejournal.ummuba.ac.id/index.php/pgsd/article/view/1419