1. Technical and economical aspects of the use of limestone filler additions in cement;Baron;World Cem,1987
2. Cement with interground materials-capabilities and environmental relief, Part 1;Schmidt;Zement-Kalk-Gips,1992
3. Ghosh SN, Sarkar SL, Harsh S. Mineral admixtures in cement and concrete. Abi Books; 1993.
4. BS-EN197-1. Cement Part 1: composition, specifications and conformity criteria for common cements. Eur Comm Stand; 2000. p. 1–29.
5. ES4756-1. Cement – Part 1: composition, specifications and conformity criteria for common cements;Egyptian Standard Specification;Egypt Organ Stand Qual,2007