MAKKI, A. N. .; MINDARTA, E. K.; PRAYOGI, B. A. .; ALIM, S.; RIZA, N. . Problem-Based Learning and Final Cooling-System Competency in Heavy-Duty Diesel Engine Education: A Quasi-Experimental Pretest-Posttest Study. Journal Of Human And Education (JAHE), [S. l.], v. 6, n. 5, p. 584–607, 2026. DOI: 10.31004/jh.v6i5.3006. Disponível em: https://mail.jahe.or.id/index.php/jahe/article/view/3006. Acesso em: 3 oct. 2026.