1. Standard specification for transportation materials and methods of sampling and testing. Part II;AASHTO (American Association of State Highway and Transportation Officials),1986
2. Effect of lime, cement and Sarooj (artificial pozzolan) on the swelling potential of an expansive soil from Oman;Al-Rawas;Build Environ,2005
3. Standard specification for coal fly ash and raw or calcined natural pozzolan for use in concrete;ASTM C618-15,2015
4. Standard test method for California Bearing Ratio (CBR) of laboratory-compacted soils;ASTM D1883-16,2016
5. Standard practice for classification of soils for engineering purposes (Unified Soil Classification System);ASTM D2487-11,2011