A. C. Choy Pun, Y. P. Lugo Muñoz, Z. Ccasa Aquiz, A. Paucar Cruz, P. J. Villa Fernández, and D. Huaranga Calixto, “Quality Management System (ISO 9001:2015) to Improve Customer Satisfaction in a Beauty Salon: Evidence from Montalvo Salon & Spa - San Miguel”, LACCEI, vol. 1, no. 14, July 2026, doi: 10.18687/LACCEI2026.1.1.238.