Irfan Said, M., Abustam, E., Pakiding, W. and Zain Mide, M. (2019) “Utilization of Poultry Slaughterhouses (PSh) Waste as a By-product of Protein Sources to Create the Environmental Friendly Livestock Systems in Makassar, South Sulawesi, Indonesia”, European Journal of Sustainable Development, 8(4), p. 273. doi: 10.14207/ejsd.2019.v8n4p273.