UTOMO, Eko Prasetyo. DEVELOPMENT OF PICTURE STORY BOOKS BASED ON DISCOVERY LEARNING ON ECONOMIC ACTIVITIES. Soedirman Economics Education Journal, [S.l.], v. 4, n. 2, p. 40-48, oct. 2022. ISSN 2686-6277. Available at: <http://jos.unsoed.ac.id/index.php/seej/article/view/6913>. Date accessed: 29 apr. 2024. doi: https://doi.org/10.32424/seej.v4i2.6913.