1. AbdulGaffar, A. 2004. Environmental problems and sustainability in Bahrain. National Democratic Action Society Publication, The Kingdom of Bahrain.
2. Abdulridha, H. 2006. Assessment of heavy metals in locally caught and imported seafood during the period 1997–2003. MSc. Thesis, the University of Bahrain, 92 pp.
3. Al-Madany, I and Al-Sayed, H. 2000. Bahrain Marine Environment. Book series on Wildlife No. 7. The National Commission for Wildlife Protection. 189 pp.
4. Al-Madani I. 1994. Industrial effluents and Bahrain coastal pollution by oil hydrocarbons, Industrial Cooperation, 15: 41–52.
5. Al-Sayed, H., Mahasneh, A., and Al-Saad, J. 1994. Variations in trace metal concentrations in seawater and Pearl Oyster Pinctada radiata from Bahrain (Arabian Gulf). Marine Pollution Bulletin, 28: 370–374.