1. BS 1881: Part 102. Method for determination of slump; 1983.
2. BS 1881: Part 103. Method for determination of compacting factor; 1983.
3. BS 1881: Part 104. Method for determination of Vebe time; 1983.
4. Cements of yesterday and today. Concrete of tomorrow;Aı̈tcin;Cement Concrete Res,2000
5. Fly ash for use in concrete—a critical review;Berry;ACI J,1980