Rodríguez Ulcuango, Olga, 		Guerra Rodríguez, Cristian, 		Trujillo Chávez, Hugo, AND 		Rodríguez Ulcuango, Carlos.
" Characterization of the consumer of agri-food products in traditional markets against covid-19 in Ecuador" <em>mktDESCUBRE</em> [Online], Volume 1 Number Especial (12 May 2021)