1. Prehistory of Concrete;Malinowski;Concrete International,1991
2. Natural Pozzolans in India, Their Utility, Distribution and Petrography;Hazra;Records of the Geological Survey of Indian,1987
3. The Chemistry of Cement and Concrete;Lea,1974
4. The Chemistry of Portland Cement;Bogue,1955
5. Lime and Surkhi Manufacture in Indian;Spence,1974