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2. Evidence of earliest human occurrence in Europe: the site of Pirro Nord (Southern Italy);Arzarello;Naturwissenschaften,2007
3. Prehistoric Arunachal;Ashraf,1990
4. Stone Age Traditions of Meghalaya- A study of variation and continuity;Ashraf,2010
5. A review of Padah-lin culture;Aung;Myanmar Historical Research Journal,2000