Veronica Sri Lestari and  Asmuddin Natsir and  Hasmida Karim and  Ian Patrick,  Factors Affecting Consumers’ Willingness to Pay for Chicken Meat from Biosecure Farms.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2016, vol. 114(6). 2062 - 2066
    [viewed 18 May 2021]. Available from: https://publications.waset.org/pdf/10004756.