Robiyansah M. THE INFLUENCE OF ONLINE LEARNING MEDIA EFFECTIVENESS, SELF-EFFICIENCY AND LEARNING MOTIVATION ON STUDENTS’ ECONOMIC LEARNING OUTCOMES AT SMA NEGERI 38 JAKARTA IN THE ERA OF PANDEMIC COVID- 19. jpepa [Internet]. 2022 Aug. 30 [cited 2025 Jan. 8];3(2):34-50. Available from: https://journal.unj.ac.id/unj/index.php/jpepa/article/view/30873