Fereig, R. M. M., A. E. A. Mohamed, M. N. E. Ismail, and A. O. Ali. “Occurrence, Risk Factors, and Health Hazards of Dictyocaulus Filaria Infection in Goats in Qena, Egypt”. PSM Veterinary Research, vol. 3, no. 2, Dec. 2018, pp. 36-44, https://psmjournals.org/index.php/vetres/article/view/223.