Irfan Said, Muhammad, Effendi Abustam, Wempie Pakiding, and Muhammad Zain Mide. 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), 273. https://doi.org/10.14207/ejsd.2019.v8n4p273.