«A Fuzzy SERVQUAL-Based QFD Framework for Enhancing Calibration Services in a Regional Metrology Laboratory». ITEGAM-JETIA 12, no. 61 (septiembre 30, 2026): 829–837. Accedido octubre 22, 2026. https://itegam-jetia.org/journal/index.php/jetia/article/view/4176.