Dahlan, F.A.R. 2024. Development of Digital Book Learning Media on The Subject Geography Environmental Material Geosphere: Atmospheric Dynamics at Sma Negeri 1 Gorontalo Utara. International Journal of Innovation and Education Research. 3, 2 (Nov. 2024), 98–109. DOI:https://doi.org/10.33369/ijier.v3i2.34972.