Islam, M., Kizaki, K., Takahashi, T., Khanom, J., Debnath, S. and Khandoker, M. 2014. Pregnancy diagnosis in Black Bengal goat by progesterone assay. Bangladesh Journal of Animal Science. 43, 3 (Dec. 2014), 180–184. DOI:https://doi.org/10.3329/bjas.v43i3.21645.