Pili, Engilbert D., Cement bonded rice hull ash and coconut coir for panel board/ Engilbert D. Pili, Rodelyn P. Tanay, Obet B. Trinidad - Nabua, Camarines Sur : Camarines Sur Polytechnic Colleges ; 2004. - 50 leaves. Undergraduate Thesis (BSCE) - Civil Engineering Subjects--Topical Terms: Cement (rice hull ash and coconut coir)--Testing.