nastalia, mesi and Lestari, T. 2021. THE EFFECTIVENESS OF DISTANCE LEARNING IN SCIENCE STUDENTS DURING COVID-19 AT SMPN KECAMATAN KOTO XI TARUSAN, PESISIR SELATAN DISTRICT ON UNDERSTANDING STUDENT CONCEPTS. Universe. 2, 2 (Dec. 2021), 204-212. DOI:https://doi.org/10.24036/universe.v2i2.108.