Abdallah S. Al-Zoubi, Abd El-Rahman A. Abueladas, Rami I. Al-Rzouq, Christian Camerlynck, Emad Akkawi, M. Ezarsky, Abu-Hamatteh Z.S.H, Wasim Ali and Samih Al Rawashdeh
American Journal of Environmental Sciences 3 ( 4 ): 230 - 234 , 2007