Sunder Singh, Shyam, and Akhand Sharma. “A STUDY OF COMPOSITE INDEX: WITH SPECIAL CONTEXT TO GOND TRIBE OF CENTRAL INDIA”. Humanities & Social Sciences Reviews 7, no. 6 (January 31, 2020): 1064-1076. Accessed September 23, 2020. https://giapjournals.com/hssr/article/view/hssr.2019.76156.