1. Concrete Admixtures Handbook;Ramachandran,1995
2. 15 — Cement admixtures;Edmeades,2003
3. 6 — Retarding and water reducing admixtures;Ramachandran,2002
4. Commercial use of lignin-based materials;Gargulak,2000
5. New Developments in the Commercial Utilization of Lignosulfonates;Lauten,2010