Risdanareni, Puput, Afif Achsanul Choiri, Boedya Djatmika, and Poppy Puspitasari. 2017. “Effect of the Use of Metakaolin Artificial Lightweight Aggregate on the Properties of Structural Lightweight Concrete”. Civil Engineering Dimension 19 (2):86-92. https://doi.org/10.9744/ced.19.2.86-92.