González Garduño, Roberto, Carmen Córdova Pérez, Glafiro Torres Hernández, Pedro Mendoza de Gives, and Javier Arece García. 2011. “Prevalence of Gastrointestinal Parasites in Slaughtered Sheep at a Slaughterhouse in Tabasco, Mexico”. Veterinaria México OA 42 (2). https://veterinariamexico.fmvz.unam.mx/index.php/vet/article/view/282.