Inquilla-Mamani, Dr. Juan, and Dr. Gilberto Vilca - Cutipa. “Servqual Model for the Evaluation of the Perceived Quality of Social Program Services - FISE in the Puno Region.” International Journal of English Literature and Social Sciences, vol. 4, no. 3, 2019, pp. 784–804. Crossref, https://doi.org/10.22161/ijels.4.3.34.