Gatewood, Willard B.
Indiana University Press, 1990
Buku Teks
Heng, Chye Kiang, author
Universsity of Hawaii Press, 1999
Buku Teks
Crepeau, Elizabeth Blesedell, author
Wolters Kluwer, 2009
Buku Teks
Price, Willard
The John Day Company, 1954
Buku Teks
Schell, Barbara A. Boyt, author
Lippincott Williams & Wilkins, 2014
Buku Teks