Chopra, K. (1999). Operationalising sustainable development:economic-ecological: Modelling for developing countries. Sage.
Tohutoru Kātū Chicago (17th ed.)Chopra, Kanchan. Operationalising Sustainable Development:economic-ecological: Modelling for Developing Countries. New Delhi: Sage, 1999.
Tohutoro MLA (9th ed.)Chopra, Kanchan. Operationalising Sustainable Development:economic-ecological: Modelling for Developing Countries. Sage, 1999.
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