1. Ellen R, Harris H. Concepts of indigenous environmental knowledge in scientific and development studies literature: A critical assessment. In: East-West Environmental Linkages Network Workshop 3; Canterbury, 8-10 May 1996
2. Ayurveda. (Sanskrit: आयुर्वेद; Āyurveda, “the complete knowledge for long life”) or ayurvedic medicine is a system of traditional medicine native to India and a form of alternative medicine. Available from: http://en.wikipedia.org/wiki/Ayurveda [Accessed: 21 September, 2016]
3. Unani-tibb or Unani Medicine also spelled Yunani Medicine (/juːˈnɑːni/; Yūnānī in Arabic, Hindi-Urdu and Persian) means “Greek Medicine”, and is a form of traditional medicine widely practiced in South Asia. Available from: http://en.wikipedia.org/wiki/Unani [Accessed: 21 September, 2016]
4. Warren DM. The role of indigenous knowledge in facilitating the agricultural extension process. In: Paper Presented at International Workshop on Agricultural Knowledge Systems and the Role of Extension, Bad Boll, Germany. 21-24 May 1991
5. Flavier JM, et al. The regional program for the promotion of indigenous knowledge in Asia. In: Warren DM, Slikkerveer LJ, Brokensha D, editors. The Cultural Dimension of Development: Indigenous Knowledge Systems. London: Intermediate Technology Publications; 1995. pp. 479-487