KHATUN, M., ISLAM, K. M. S., HOWLEDER, M. A. R., HAQUE, M. N., CHOWDHURY, R., & KARIM, M. R. (2010). Effects of dietary citric acid, probiotic and their combination on the performance,tibia ash and non-specific immune status of broiler. The Indian Journal of Animal Sciences, 80(8). https://epubs.icar.org.in/index.php/IJAnS/article/view/370