J. Wiengcharoen, W. Nokkaew, S. Prasithpon, P. Prasomtong, and Y. Sukthana, “Neospora caninum and Toxoplasma gondii Antibodies in Captive Elephants (Elephaus maximus indicus) in Kanchanaburi Province”, TJVM, vol. 42, no. 2, pp. 235–240, Aug. 2013.