The Analysis of Added Value of Cow Rumen into Compost Fertilizer in Kendari City Slaughterhouses (RPH) (Case Study of Ikhlas RPH Farmer Group Business) Abdul Rahim Syah, La Ode Alwi, Munirwan Zani International Journal of Agricultural Social Economics and Rural Development (Ijaserd) Vol. 3 No. 1 2023 DOI 10.37149/ijaserd.v3i1.1029