Rivera-Jacinto, Marco, Claudia Rodriguez-Ulloa, and Luisa Zarpán-Arias. 2008. “Effect of an Educational Intervention on Food Hygiene in Students from Cajamarca”. Revista Peruana De Medicina Experimental Y Salud Pública 25 (1). https://doi.org/10.17843/rpmesp.2008.251.1251.