Innovation in the Development of Android-Based Digital Teaching Materials on Coloid System Materials Post published:January 22, 2023 Post category:SJES-Vol-2-issue-1-2023 Post author:Lolita A.M. Parera, Jasman, I Gusti M. N. Budiana, Sudirman, Kasimir Sarifudin, Eka C. G. Kerihi Continue ReadingInnovation in the Development of Android-Based Digital Teaching Materials on Coloid System Materials