Tewari, D. D., and Ajay Kumar Mahapatra. “Global Income and Employment Generation Impacts of Non-Timber Forest Products (NTFPs) and Their Poverty Mitigation Potential: Reflections Based on Worldwide Evidences”. Indian Forester, vol. 137, no. 1, Jan. 2011, pp. 3-17, doi:10.36808/if/2011/v137i1/12053.