Isti Zulfa Nida, Sukamto, Veryliana Purnamasari. PENGARUH PROBLEM BASED LEARNING TERHADAP KEMAMPUAN BERPIKIR KRITIS MATEMATIS SISWA KELAS III SEKOLAH DASAR. didaktik [Internet]. 2023Jul.6 [cited 2026Sep.21];9(2):4808 -4818. Available from: http://journal.stkipsubang.ac.id/index.php/didaktik/article/view/1142