Economic tables. Arunachal Pradesh. V. 3 & V. 1, Pt. IIIB-B series, Table B-2(f), B-3(f), B-6(f), B-7(f), B-8(f), B-9(f), B-12(f), B-13(I), B-13(II), B-14(f) - Census of India, 1991 (Arunachal Pradesh Gov. Press, 1991)