Nattaphong Sangpratum และ Roongroje Thanawongnuwech. (2017) Dual infection between a Thai isolate highly pathogenic porcine reproductive and respiratory syndrome virus and pandemic H1N1swine influenza virus in weanling pigs. Chulalongkorn University:ม.ป.ท.Nattaphong Sangpratum และ Roongroje Thanawongnuwech. 2017. Dual infection between a Thai isolate highly pathogenic porcine reproductive and respiratory syndrome virus and pandemic H1N1swine influenza virus in weanling pigs. ม.ป.ท.:Chulalongkorn University;Nattaphong Sangpratum และ Roongroje Thanawongnuwech. Dual infection between a Thai isolate highly pathogenic porcine reproductive and respiratory syndrome virus and pandemic H1N1swine influenza virus in weanling pigs. ม.ป.ท.:Chulalongkorn University, 2017. Print.