Selden, Raman, author
University Press of Kentucky, 1989
Buku Teks
edited by Fred E. Dohrs and Lawrence M. Sommers
Thomas Y. Crowell, 1969
Buku Teks
Cunningham, Valentine, author
Blackwell Publishers, 2002
Buku Teks
Sylvana Uli Basa Evi Dame Manaloe, author
2013
UI - Tesis (Membership)
Thomas, Wright, author
Oxford University Press, 1941
Buku Teks