Sari, Nova Noor Kamala, and Widiatry Widiatry. “The Use of Mobile Assistant Application to Identify the Crowds in Covid 19 New Normal”. Jurnal Komputer Terapan 7, no. 2 (December 24, 2021): 251–260. Accessed April 20, 2024. https://jurnal.pcr.ac.id/index.php/jkt/article/view/4710.