Yonse dehakkyo Hankukohakdang
Yeonsedehakkyo Chulpanbu, 2006
Buku Teks
Ostrowsky, O., author
ELBS, 1981
Buku Teks
editor in chief Edwin R. A. Seligman
MacMilan Company, 1953
Buku Referensi
edited by D.J. Weatherall, J.G.G. Ledingham, D.A. Warrell
Oxford University Press, 1987
Buku Teks
edited by A. Ghosh
E.J. Brill, 1990
Buku Referensi