Hariyati, Budi Jatmiko, Raharjo. Development of Online Science Learning Devices Cooperative Model Type STAD Assisted by Video Media to Improve Learning Outcomes of Elementary School Students. IJORER Int. J. Recent Educ. Res. [Internet]. 2020Oct.31 [cited 2025Jul.2];1(3):301-13. Available from: https://journal.ia-education.com/index.php/ijorer/article/view/39