Automation of the Barter Exchange Management in Ecuador Applying Google V3 API for Geolocation. - José Antonio Quiña-Mera; Efrain Rumiñahui Saransig-Perugachi; Diego Javier Trejo-España; Miguel Edmundo Naranjo-Toro; Cathy Pamela Guevara-Vega (ICITS, 2019)