1. Mineral Commodity Summaries;U.S. Geological Survey,2009
2. Embodied energy and CO2 coefficients for NZ building materials;Alcorn,2003
3. Sustainable development and climate change initiatives;Damtoft;Cem. Concr. Res.,2008
4. Standard Specification for Portland Cement;ASTM C 150,2009
5. Standard Performance Specification for Hydraulic Cement;ASTM C 1157,2009