Rostikawati, R.T., Lamis, S. and Prasaja, D. 2025. Development of a Gastropod Diversity E-booklet as a Learning Media for High School Students. Journal Of Biology Education Research (JBER). 6, 1 (May 2025), 68–75. DOI:https://doi.org/10.55215/jber.v6i1.37.