Alex Fraaij
- A structural investigation relating to the pozzolanic activity of rice husk ashes. Dans: Cement and Concrete Research, v. 38, n. 6 (juin 2008). (2008):
- Reactive pozzolanas from rice husk ash: An alternative to cement for rural housing. Dans: Cement and Concrete Research, v. 36, n. 6 (juin 2006). (2006):