Gunawan, V. C. ., M. R. bin Shamsuddin, N. H. bin . Mat Isa, and M. R. M. bin Julaihi. “Performance Analysis of Effective Microorganisms on Chicken Manure Composting”. Science, Engineering and Health Studies, vol. 14, no. 2, Aug. 2020, pp. 132-40, doi:10.14456/sehs.2020.12.