Habibi M, Sunardi, Sudiyanto. Identification of Opportunities for Utilizing E-Modules with a Problem Based Learning Approach to Facilitate Learning in Vocational High Schools. j. edutech. [Internet]. 2022 Dec. 14 [cited 2024 Nov. 29];10(2):311-22. Available from: https://ejournal.undiksha.ac.id/index.php/JEU/article/view/52722