Muna, Yachsifa, and Aida Fitriani Sitompul. 2026. “Developing an Interactive E-Booklet Based on Multimedia Learning Theory to Improve Learning Outcomes on Biodiversity ”. ETDC: Indonesian Journal of Research and Educational Review 5 (4):2332-46. https://doi.org/10.51574/ijrer.v5i4.5085.