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jstor.org
Mark L, Mark S, John T and Mihriye M (2002); Watershed Partnerships and the Emergence of Collective Action Institutions American Journal of Political Science, Volume 46 No.1 Page 148-163. Available at: https://www.jstor.org/stable/3088419نسخة محفوظة 2016-06-03 على موقع واي باك مشين.
7. Prabhakar K, Lavanya K, and Papa Rao A (2010); NGOs and Farmers Participation in Watershed Development Programme in Prakasam District, Asia-Pacific Journal of Social Science, Volume II (1) Pages173-182. Also available at: http://www.socialsciences-ejournal.org/3.9.%20Prabhakar.pdf. نسخة محفوظة 2012-03-22 على موقع واي باك مشين.
Mark L, Mark S, John T and Mihriye M (2002); Watershed Partnerships and the Emergence of Collective Action Institutions American Journal of Political Science, Volume 46 No.1 Page 148-163. Available at: https://www.jstor.org/stable/3088419نسخة محفوظة 2016-06-03 على موقع واي باك مشين.
7. Prabhakar K, Lavanya K, and Papa Rao A (2010); NGOs and Farmers Participation in Watershed Development Programme in Prakasam District, Asia-Pacific Journal of Social Science, Volume II (1) Pages173-182. Also available at: http://www.socialsciences-ejournal.org/3.9.%20Prabhakar.pdf. نسخة محفوظة 2012-03-22 على موقع واي باك مشين.