Zumbado, L., de Oliveira, J. B., Chacón, F., Hernández, J., Quiros, L., & Murillo, J. (2013). Identification of gastrointestinal parasites in pig farms and economic losses due to condemnation of livers parasitized by Ascaris suum in abattoirs in Costa Rica. Universidad Nacional, Costa Rica.

Zumbado, Leana, Jaqueline Bianque de Oliveira, Fernando Chacón, Jorge Hernández, Ligia Quiros, and Julio Murillo. Identification of Gastrointestinal Parasites in Pig Farms and Economic Losses Due to Condemnation of Livers Parasitized By Ascaris Suum in Abattoirs in Costa Rica. Universidad Nacional, Costa Rica, 2013.

Zumbado, Leana, et al. Identification of Gastrointestinal Parasites in Pig Farms and Economic Losses Due to Condemnation of Livers Parasitized By Ascaris Suum in Abattoirs in Costa Rica. Universidad Nacional, Costa Rica, 2013.