Ilustre, M.A.S., Maullion, J.M., Rado, C.B.S. and Magundayao, E.C. 2017. Cement Plaster Proportioning Suitable for Sands from Different Sources in Batangas Province. Asia Pacific Higher Education Research Journal (APHERJ). 4, 1 (Aug. 2017). DOI:https://doi.org/10.56278/apherj.v4i1.435.