Firmansyah, R. , Yuliananda, A.F. , Muljani, S. and Edahwati, L. 2026. Synthesis of Ca–Si–K–P Composite from Carbide Lime and Rice Husk using Precipitation Method. International Journal of Eco-Innovation in Science and Engineering (IJEISE). 7, 01 (May 2026), 39–46.