1. Pozzolanic and cementitious materials—advances in concrete technology. Vol. I;Malhotra,1996
2. A new gas permeameter for measuring the permeability of mortar and concrete;Cabrera;Magazine of Concrete Research,1988
3. Grube H, Lawrence CD. Permeability of concrete to oxygen. In: Durability of concrete structures under normal outdoor exposure. Germany: University of Hanover, March 1984. p. 68–79.
4. Khan MI, Lynsdale CJ. A novel method for measuring porosity of normal and high strength concrete (in preparation).
5. Khan MI. Development of high performance concrete incorporating ternary blended cementitious systems. Ph.D. thesis. University of Sheffield, UK, February 2000.