Digital Marketing as a strategy to increase the income of the company "Rutas Turísticos el Chico" in Hidalgo. - Mayra Lorena Gonzalez Mosqueda; Hector Gil Perez; Karla Martinez Tapia; Eric León Olivares; Ma. Guadalupe Ibarra Huesca (Int. J. Comb. Optim. Probl. Informatics, 2023)