Deviyanti, H. and Mustapa, K. 2025. Analysis of The Effectiveness of Online Learning and Its Impact on Chemistry Lessons at SMAN 1 Ampibabo During The Covid-19 Pandemic. Media Eksakta. 20, 1 (Mar. 2025), 21-27. DOI:https://doi.org/10.22487/me.v19i2.1545.