S. Umphonphison, C. Thammakarn, and K. Srikitkasemwat, “Antigenic Properties of Open Reading Frame 2 protein of Porcine Circovirus Type 2 from Vaccines Extracted by Ultrafiltration Method”, J. Mahanakorn Vet. Med., vol. 17, no. 1, pp. 23–36, Aug. 2022.