Abdul Rahman, I., Adnan, S. H., Soejoso, M. W., & Ahmad Zaidi, A. M. (2011). Water permeability of recycled aggregate concrete containing new pozzolan micronised biomass silica material. Universiti Tun Hussein Onn Malaysia.

Abdul Rahman, Ismail, Suraya Hani Adnan, Mia Wimala Soejoso, and Ahmad Mujahid Ahmad Zaidi. Water Permeability of Recycled Aggregate Concrete Containing New Pozzolan Micronised Biomass Silica Material. Universiti Tun Hussein Onn Malaysia, 2011.

Abdul Rahman, Ismail, Suraya Hani Adnan, Mia Wimala Soejoso, and Ahmad Mujahid Ahmad Zaidi. Water Permeability of Recycled Aggregate Concrete Containing New Pozzolan Micronised Biomass Silica Material. Universiti Tun Hussein Onn Malaysia, 2011.