Rivai WA, Sumiati A, Wahono P. DEVELOPMENT OF FLIPBOOK BASED ELECTRONIC MODULES ON BUSINESS AND LOGISTICS SERVICE ELEMENTS AT VOCATIONAL SCHOOLS. jpepa [Internet]. 2024Apr.30 [cited 2026Feb.26];5(1):20-2. Available from: http://103.8.12.212:33180/unj/index.php/jpepa/article/view/45776