Zhaojun Wang and  Zongdi Sun and  Yongjie Chen and  Manman Chen and  Linghui Wang,  Evaluation of the Execution Effect of the Minimum Grain Purchase Price in Rural Areas.   journal   = {International Journal of Industrial and Systems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2019, vol. 155(11). 1444 - 1449
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/10010903.