Pebi Mina Husania, Rani Chantika, Puji Sri Alhirani, & Uli Salsabila Hasibuan. (2025). Performance Analysis of the M/M/1 Queuing System in Barber Shop Services Using an Analytical Approach. Mars: Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer, 3(6), 199–210. https://doi.org/10.61132/mars.v3i6.1283