Dong, Shanshan, Bin Sui, Yujun Shen, Haibo Meng, Lixin Zhao, Jingtao Ding, Haibin Zhou, et al. 2020. “Investigation and Analysis of the Linkage Mechanism and Whole Process Cost of Livestock Manure Organic Fertilizer”. International Journal of Agricultural and Biological Engineering 13 (2):223-27. https://www.ijabe.migration.pkpps06.publicknowledgeproject.org/index.php/ijabe/article/view/5682.