Alharbey, R., A. Banjar, Y. Said, M. Atri, and M. Abid. “A Human Face Detector for Big Data Analysis of Pilgrim Flow Rates in Hajj and Umrah”. Engineering, Technology & Applied Science Research, vol. 14, no. 1, Feb. 2024, pp. 12861-8, doi:10.48084/etasr.6668.