Bito, N., Ismail, S., & Deddy R. Dako, R. . (2019). The Development of Character Building-Based Two-Dimensional Shapes Multimedia on Junior High School Students in Gorontalo Province, Indonesia. International Journal of Sciences: Basic and Applied Research (IJSBAR), 48(1), 115-125. https://gssrr.org/JournalOfBasicAndApplied/article/view/10200