Tan, Hequn, Meng Li, Dengfei Jie, Yafang Zhou, and Xin’an Li. 2019. “Effects of Different Litters on Ammonia Emissions from Chicken Manure”. International Journal of Agricultural and Biological Engineering 12 (4):27-33. https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/5011.