Choy Pun, A. C., Lugo Muñoz, Y. P., Ccasa Aquiz, Z., Paucar Cruz, A., Villa Fernández, P. J., & Huaranga Calixto, D. (2026). Quality Management System (ISO 9001:2015) to Improve Customer Satisfaction in a Beauty Salon: Evidence from Montalvo Salon & Spa - San Miguel. LACCEI, 1(14). https://doi.org/10.18687/LACCEI2026.1.1.238