Cite
APA Citation
Karolina, R., Syahrizal, , Putra, M., & Prasetyo, T. A. (2015). optimization of the Use of Volcanic Ash of Mount Sinabung Eruption as the Substitution for Fine Aggregate. Procedia engineering, 125, 669–674. http://access.bl.uk/ark:/81055/vdc_100029836638.0x00001d