Kurniawati, K. 2023. Development of e-Books as Teaching Materials for Pteridophyta Material to Improve Students Concept Mastery. At-Tasyrih: jurnal pendidikan dan hukum Islam. 9, 2 (Jul. 2023), 363–375. DOI:https://doi.org/10.55849/attasyrih.v9i2.198.