Satakhun Detphan, Tanakorn Phoo-ngernkham, Vanchai Sata, Chudapak Detphan, and Prinya Chindaprasirt. “PORTLAND CEMENT CONTAINING FLY ASH, EXPANDED PERLITE, AND PLASTICIZER FOR MASONRY AND PLASTERING MORTARS”. GEOMATE Journal, vol. 15, no. 48, Apr. 2018, pp. 107-13, https://geomatejournal.com/geomate/article/view/897.