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Hariyati, Budi Jatmiko and Raharjo 2020. Development of Online Science Learning Devices Cooperative Model Type STAD Assisted by Video Media to Improve Learning Outcomes of Elementary School Students. IJORER : International Journal of Recent Educational Research. 1, 3 (Oct. 2020), 301-313. DOI:https://doi.org/10.46245/ijorer.v1i3.39.