Desy Muwaffaqoh, Tjandra Kirana and Fida Rachmadiarti 2021. The Development of E-Book Based on Project Based Learning on the Plant Anatomy Structure Material. IJORER : International Journal of Recent Educational Research. 2, 4 (Jul. 2021), 416-431. DOI:https://doi.org/10.46245/ijorer.v2i4.127.