1. Al Hemiddi, N.A. 1995. Passive Cooling Systems Applicable for Buildings in Hot Dry Climate of Saudi Arabia. Ph.D. Dissertation. Graduate School of Architecture and Urban Planning, UCLA, CA Los Angeles.
2. Earth integrated buildings – an overview;Givoni;Architectural Science Review,1981
3. Passive and Low Energy Cooling of Buildings;Givoni,1994
4. Climate Consideration in Building and Urban Design;Givoni,1998
5. Hayeem, E. 1984. An Experimental Study of Earth Temperature Modification in a Semi Arid Desert Region. M.Sc. Thesis. Trinity University.