edited by Herbert C. Purnell; translated by Chang Yu-hung and Chu Kwo-ray
Cornell University, 1972
Buku Teks SO
edited by Tsuboi Kiyotari
Centre for East Asian Cultural Studies, 1987
Buku Teks SO
Dani, A.H.
Centre for East Asian Cultural Studies ; Paris, France : United Nations Educational, Scientific and Cultural Organization, 1988.
Buku Teks SO
Artikel Jurnal
Thapar, B.K.
Unesco, 1985
Buku Teks SO