Simatupang, P. H., Imran, I., Pane, I. and Sunendar, B. (2015) “On the Development of a Nomogram for Alkali Activated Fly Ash Material (AAFAM) Mixtures”, Journal of Engineering and Technological Sciences, 47(3), pp. 231-249. doi: 10.5614/j.eng.technol.sci.2015.47.3.1.