Simatupang, Partogi H., Iswandi Imran, Ivindra Pane, and Bambang Sunendar. “On the Development of a Nomogram for Alkali Activated Fly Ash Material (AAFAM) Mixtures”. Journal of Engineering and Technological Sciences 47, no. 3 (July 31, 2015): 231-249. Accessed February 23, 2024. https://journals.itb.ac.id/index.php/jets/article/view/356.