1. Heriyani, E, Experimental Study of the Use of Rubber Seed Waste as a Substitute for Coarse Aggregate in a Mixed Lightweight Concrete Combination of Tulung Selapan Sand and Conplast. J. Tech. Civil and Environmental. Vol. 2, No. 3, p. pp.336–342, (2014).
2. Chandra, S. and Berntsson, L., Lightweight aggregate concrete. Elsevier (2002).
3. Characteristics of lightweight concrete containing mineral admixtures
4. Suseno, H., Use of Scoria Rock from Mount Kelud Blitar as Coarse Aggregate in Structural Lightweight Concrete. J. Civil Engineering, 7(2), pp.149–156 (2013).
5. Overview of supplementary cementitious materials usage in lightweight aggregate concrete