“Analisis Kinerja Antrian Pelanggan Restoran Cepat Saji (Studi Kasus : Kfc Jln. Gajah Mada, Medan, Sumatera Utara): Analysis of Restaurant Fast Food Customer Queue Performance (Case Study: KFC Gajah Mada St., Medan, North Sumatra)”. Talenta Conference Series: Science and Technology (ST) 1, no. 1 (October 17, 2018): 032–037. Accessed May 1, 2026. https://talentaconfseries.usu.ac.id/index.php/st/article/view/186.