Choy Pun, Augusto Carlos, Yuli Patricia Lugo Muñoz, Zarai Ccasa Aquiz, Ashley Paucar Cruz, Percy Jhair Villa Fernández, and Diana Huaranga Calixto. 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.