Harahap M, Kusuma L, Suryani M, Situmeang CE, Purba JF. Identification of Face Mask With YOLOv4 Based on Outdoor Video. SinkrOn [Internet]. 2021Oct.19 [cited 2024Jul.27];5(2B):127-34. Available from: https://jurnal.polgan.ac.id/index.php/sinkron/article/view/11190