Nelia V. Aman, Franklyn T. Amistad and Alfredo R. Rabena 2009. Analysis of the Compressive Strength of Concrete Using Kakawate (Gliricidia sepium) Jacq. Kunth ex walph. Wood Ash Cement. The Vector: International Journal of Emerging Science, Technology and Management (IJESTM). 18, 1 (Dec. 2009). DOI:https://doi.org/10.69566/ijestm.v18i1.227.