Open Science Research Excellence
H. B. Mahmud and  Syamsul Bahri and  Y. W. Yee and  Y. T. Yeap ,  Effect of Rice Husk Ash on Strength and Durability of High Strength High Performance Concrete.   journal   = {International Journal of Civil, Environmental, Structural, Construction and Architectural Engineering}, [online]. World Academy of Science, Engineering and Technology. March 2016, vol. 111(3). 390 - 395[viewed 24 June 2019]. Available from: http://waset.org/publications/10004076.