LUKIYATI, L. The Influence of Project-Based Learning of Chemical Products on Concept Understanding and Science Process Skills of Class X Mechanical Engineering Students at SMK Negeri 2 Samarinda. Educationist: Journal of Educational and Cultural Studies, [S. l.], v. 1, n. 2, p. 252–278, 2022. Disponível em: https://jurnal.litnuspublisher.com/index.php/jecs/article/view/129. Acesso em: 24 feb. 2025.