[1]
Pardede, O.B. and Astri, N.D. 2021. Analysis of the Application of the Online Learning System (Spada) to Increase Student Learning Activities during the Covid-19 Pandemic. Randwick International of Education and Linguistics Science Journal. 2, 3 (Sep. 2021), 374-382. DOI:https://doi.org/10.47175/rielsj.v2i3.304.