Hermansyah, Lestari, S.R. and Susanto, H. 2026. The The Urgency of the Big Book of Digestive System Ethnoscience: An Analysis of the Needs of Reading Interest and Science Literacy of Elementary School Students. ISEJ : Indonesian Science Education Journal. 7, 2 (May 2026), 36-50. DOI:https://doi.org/10.62159/isej.v7i2.2036.