Sompreeya Kongkaew. 2010. Improvement of swine production efficiency by producing the porcine reproductive and respiratory syndrome virus negative pigs and controlling the main respiratory bacterial infection. Faculty of Medicine, Chiang Mai University;

Sompreeya Kongkaew. Improvement of swine production efficiency by producing the porcine reproductive and respiratory syndrome virus negative pigs and controlling the main respiratory bacterial infection. . Chiang Mai:Chiang Mai University, 2010.

Sompreeya Kongkaew. (2010) Improvement of swine production efficiency by producing the porcine reproductive and respiratory syndrome virus negative pigs and controlling the main respiratory bacterial infection . Chiang Mai University/Chiang Mai.