Br Ginting, S., H. Maulana, R. Priatna, D. Fauzzan, and D. Setiawan. “Crowd Detection Using YOLOv3-Tiny Method and Viola-Jones Algorithm at Mall”. International Journal of Informatics, Information System and Computer Engineering (INJIISCOM), Vol. 2, no. 2, Dec. 2021, pp. 13-22, doi:10.34010/injiiscom.v2i2.5460.