Pratiwi, A., Nababan, E. B., & Amalia. (2022). Detection of the Use of Mask to Prevent the Spread of COVID-19 Using SVM, Haar Cascade Classifier, and Robot Arm. Data Science: Journal of Computing and Applied Informatics, 6(2), 125-137. https://doi.org/10.32734/jocai.v6.i2-9289