SAHRUR RAMADAN. Effect of Raw Material Variations on the C/N Ratio of Biogas Potential Mixtures of Chicken Manure and Water Hyacinth: Pengaruh Variasi Bahan Baku Terhadap Rasio C/N dari Potensi Biogas Campuran Kotoran ayam dan Eceng Gondok. Indonesian Journal of Electrical Engineering and Renewable Energy (IJEERE), v. 5, n. 1, p. 01-11, 16 Jun. 2025.