Hidefumi Kawakatsu and  Dong Li and  Kosuke Kato,  Optimal Selling Prices for Small Sized Poultry Farmers.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2018, vol. 135(3). 346 - 350
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/10008650.