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]. 2022Aug.30 [cited 2025May4];3(2):34-0. Available from: http://103.8.12.212:33180/unj/index.php/jpepa/article/view/30873