Cunningham, Valentine
Blackwell Publishers, 2002
Buku Teks
edited by Fred E. Dohrs and Lawrence M. Sommers
Thomas Y. Crowell, 1969
Buku Teks
Sylvana Uli Basa Evi Dame Manaloe
2013
UI - Tesis (Membership)
edited by Henry N. Pontell
Pearson Education, 2005
Buku Teks
Thomas, Wright
Oxford University Press, 1941
Buku Teks