Islam, M. S., M. F. Hossen, and M. M. Rahman. “Productivity and Profitability Estimates for <i>Sonali</I> Chicken Farms in Rajshahi, Bangladesh”. Journal of Scientific Research, vol. 13, no. 3, Sept. 2021, pp. 989-98, doi:10.3329/jsr.v13i3.52768.