Mohan, E.V. Ranga Technological problems of a tribal agricultural production system : a case study of awangkhul village / E.V. Ranga Mohan. - New Delhi : Jawaharlal Nehru University, 1978. M.Phil - CSSP, SSS, JNU, 1978. ISBN: 1 Subjects--Topical Terms: Agriculture Index Terms--Genre/Form: Dissertation Dewey Class. No.: 338.16095417 / M7254 Te