Analisis Sistem Antrian Multi Chanel Single Phase Dalam Penerapan Protokol Kesehatan Pandemi COVID-19 Di Merdeka Walk Medan . G-Tech [Internet]. 2022 Apr. 11 [cited 2026 Oct. 2];6(1):47-52. Available from: https://ejournal.uniramalang.ac.id/g-tech/article/view/1249