20215303(en)/07 - The Perfect Storm that Ended the Pig: Changes in the Perception of Cleanliness in the Rural Andes Written by Super User on 31 March 2018.
20215303(es)/07 - La Tormenta Perfecta que Acabó con el Chancho: Cambios en la Percepción de la Limpieza en los Andes Rurales Written by Super User on 31 March 2018.