Shahiron Shahidan, Sajjad Ali Mangi, Mohamad Syamir Senin, Sharifah Salwa Mohd Zuki, Mustaqqim Abd Rahim 2020. Properties of Concrete Containing Rubber Ash and Rubber Crumb as Partial Replacement of Sand. International Journal of Advanced Science and Technology. 29, 9s (May 2020), 2053 - 2059.