Saripi S, Asari S. EVALUATING THE EFFECTIVENESS OF PBL IN ENHANCING SPEAKING SKILLS IN NON-FORMAL EDUCATION. ERJEE [Internet]. 2024Dec.24 [cited 2025Jun.1];12(3):1311-24. Available from: https://journal.uniku.ac.id/index.php/ERJEE/article/view/11166