1. AASHTO T-99 standard test methods for moisture-density relations of soils and soil-aggregate mixtures using 5.5 lb rammer and 12 in drop. Standard Specifications for Highway Materials and Methods of Sampling and Testing, Part II,1982
2. Constructive sludge management: biobrick;Alleman;J. Environ. Eng.,1984
3. Sludge-amended brick production: applicability for metal-laden residues;Alleman;Water Sci. Technol.,1990
4. CNS1127 method of test for general types of bricks for building. CNS Catalog, R3042,1999
5. Lin, D.F., Weng, C.H., 2001 Use of sewage sludge ash as brick material, J. Environ. Eng. 127(10), October issue. 922–927.