Choy Pun AC, Solano Esteban FD, Martel Orellano PA, Quijandria Rodriguez DJ, Vicuña Avila SA, García Hidalgo JA. Customer Service Improvement in a Cooperative Credit Department Using the PDCA (PHVA) Cycle and Process Simulation. LACCEI. 2026;1(14). doi:10.18687/LACCEI2026.1.1.732