Riska, Seiski Afrita, and Guspatni Guspatni. 2022. “The Effectiveness of Powerpoint-ISpring Integrated Multiple Chemical Representation Learning Media on Acid-Base Materials to Improve Students Learning Outcomes for Senior High School ”. Jurnal Pijar Mipa 17 (5):577-80. https://doi.org/10.29303/jpm.v17i5.3792.