2022. THE DEVELOPMENT OF DIGITAL BOOK MEDIA WITH LEARNING CONTEXTUAL MODEL IN PLANTAE MATERIALS SUB-CONCEPT BRYOPHYTA. BIOTIK: Jurnal Ilmiah Biologi Teknologi dan Kependidikan. 10, 1 (Apr. 2022), 104–119. DOI:https://doi.org/10.22373/biotik.v10i1.10831.