Morales, Francisco Espinoza, Cruz García Lirios, Arturo Sánchez Sanchez, Celia Yaneth Quiroz Campas, Gilberto Bermúdez Ruíz, and María del Rosario Molina González. 2020. “SPECIFICATION A MODEL FOR STUDY OF PERIURBAN SERVICES”. International Journal of Engineering Technologies and Management Research 7 (1):85-88. https://doi.org/10.29121/ijetmr.v7.i1.2020.531.