Lee, A-Jeong, Tae-Rang Park, and Jeong-Woo Jwa. “Analysis of Foot Traffic Due to COVID-19 Using Mobile Network Big Data”. International Journal of Membrane Science and Technology 10, no. 1 (June 1, 2023): 254-260. Accessed May 15, 2025. https://www.cosmosscholars.com/phms/index.php/ijmst/article/view/1453.