1. Th.A.Lang: Energy Savings Potential in the Cement Industry and Special Activities of the “Holderbank” — Group, Holderbank Management and Consulting Ltd., 5113 Holderbank, Switzerland.
2. Personal message;Wisnant,1996
3. Mini Cement, A review of Indian Experience;Sinha,1990
4. Small Scale Lime Burning;Wingate,1985
5. Chenkumbi Lime, Fuel-efficient high-quality production;Spiropoulos,1992