Sayono, Joko, Najib Jauhari, Lutfiah Ayundasari, and Wahyu Djoko Sulistyo. 2020. “Development of Projo Bale Model Based on Android Application in History and Local Wisdom Studies of Malang”. International Journal of Emerging Technologies in Learning (iJET) 15 (07):pp. 4-16. https://doi.org/10.3991/ijet.v15i07.13219.