CHANDRA, ANJUL CHANDRA, et al. “Dynamics of Antibody Titres in Dogs Vaccinated With a Polyvalent Killed Leptospira Vaccine As Measure for Quality Control”. The Indian Journal of Animal Sciences, vol. 83, no. 6, June 2013, https://epubs.icar.org.in/index.php/IJAnS/article/view/30634.