1. Abdul Rahman, I., Hamdam, H., & Ahmad Zaidi, A. M. (2009). Assessment of Recycled Aggregate Concrete. Modern Applied Science, 3(10), 47-54.
2. Adnan, S. H., Loon, L. Y., Rahman, I. A., Saman, H. M., & Soejoso, M. W. (2008, 28-29 January). Water Permeability of Recycled Aggregate Concrete. Paper presented at the Technology and Innovation for Sustainable Development Conference, Khon Kaen, Thailand.
3. Aqil, U., Tatsuoka, F., & Uchimura, T. (2005). Strength and Deformation Characteristics of Recycled Concrete Aggregate in Triaxial Compression.
4. Ashraf, M. A., Maah, M. J., Yusoff, I., Wajid, A., & Mahmood, K. (2011). Sand mining effects, causes and concerns: A case study from bestari jaya, Selangor, Peninsular Malaysia. Scientific Research and Essays, 6(6), 1216-1231.
5. Begum, R. A., & Pereira, J. J. (2007, 13-14 March). Construction waste generation, composition and recycling: a comparative analysis of issues. Paper presented at the 1st Construction Industry Research Achievement International Conference (CIRAIC), Kuala Lumpur.