Open Access | Research ArticleDesigning Android learning media to improve problem-solving skills of ratio January 19, 2022 Arts & Humanities, Engineering, Social Sciences Authors: Anisa Verawati, Denik Agustito, Widowati Pusporini, et al. Journal: Advances in Mobile Learning Educational Research DOI: 10.25082/AMLER.2022.01.005 Pub. Date: January 19, 2022
