PENERAPAN PROBLEM BASED LEARNING DALAM MENINGKATKAN HASIL BELAJAR BARISAN DAN DERET ARITMATIKA. j. penelit. n.a mat. sekol [Internet]. 2023 Dec. 29 [cited 2025 Jun. 29];7(3):421-6. Available from: https://ejournal.unib.ac.id/JPPMS/article/view/32116