1. Aina T A, Etta F E, Obi C I, 1994. The search for sustainable urban development in Metropolitan Lagos, Nigeria: Prospects and problems. Third World Planning Review, 16(2): 201–219.
2. Baldock D, Dwyer J, Lowe P et al., 2001. The nature of rural development: towards a sustainable integrated rural policy in Europe. Institute for European Environmental Policy. Available at: http://www.ieep.eu/assets/78/natureruraldevelopmentpdf .
3. Blowers A (ed.), 1993. Planning for a Sustainable Environment. London: Earthsacn Publications Limited.
4. Burton E, 2000. The compact city: Just or just compact? A preliminary analysis. Urban Studies, 37(11): 1969–2006. doi: 10.1080/00420980050162184
5. Burton E, Williams K, Jenks M, 1996. The compact city and urban sustainability: Conflicts and complexities. In: Jenks et al. (eds.). The Compact City: A Sustainable Urban Form? E & FN Spon, 231–247.