1. I. WWF, Coastal development problems: Tourism, WWF, International, Gland Av. du Mont-Blanc 1196 Gland Switzerland, 2015.
2. UNEP, Magazine for environmentally sustainable development, UNEP, 1999.
3. Tourism, Water, Wastewater and Waste Services in Small Towns;Cullen,2004
4. Decentralized approaches to wastewater treatment and management: applicability in developing countries;Massoud;J. Environ. Manag.,2009
5. A system for on-site treatment and disposal of wastewaters from tourist resorts;Christoulas;Water Sci. Technol.,1989