Nurhazizah N, Mukrim M, Arid M, Nadrun N. THE EFFECT OF PROBLEM-BASED LEARNING TO THE SPEAKING ABILITY OF THE TENTH GRADE STUDENTS. ELTS [Internet]. 2022 Nov. 1 [cited 2024 May 14];10(2):125-34. Available from: https://jurnal.fkip.untad.ac.id/index.php/elts/article/view/2492