MULIANA; FONNA, Mutia; NUFUS, Hayatun. Pengaruh Penerapan Problem Based Learning (PBL) Terhadap Keterampilan Abad 21. Ar-Riyadhiyyat: Journal of Mathematics Education, [S. l.], v. 5, n. 1, p. 22–30, 2024. DOI: 10.47766/arriyadhiyyat.v5i1.2900. Disponível em: https://jurnal.iainlhokseumawe.ac.id/index.php/arriyadhiyyat/article/view/2900. Acesso em: 23 nov. 2024.