?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Cajina+Ulloa%2C+Nathali+Vanessa&rft.aulast=Cajina+Ulloa&rft.aufirst=Nathali+Vanessa&rft.date=December+2018&rft.degree=%5B%22eprint_fieldopt_thesis_type_bachelor%22+not+defined%5D&rft.title=Tour+Operadora%3A+Pinolero+Tour's.+Para+tu+Diversi%C3%B3n%2C+Siempre+lo+mejor.&rft.tpages=103&rft.inst=Universidad+Nacional+Polit%C3%A9cnica.