Mandal, A. K., and U. K. Mishra. “Identification of Gut Endocrine Cells in Intestine of Post Hatch Broiler Chicken: A Histological and Histochemical Study”. International Journal of Livestock Research, vol. 10, no. 7, July 2020, pp. 133-8, doi:10.5455/ijlr.20200417041833.