Miller, Howard A.
Wm. C.Brown, 1978
Buku Teks
Petrides, George A., author
Houghton Mifflin, 1988
Buku Teks
Chu, Hung-fu, 1913-, author
Wm.C. Brown Communication, 1992
Buku Teks
edited by Jennifer P. Kowalak
Lippincott Williams & Wilkins, 2009
Buku Teks
Borror, Donald J., author
Houghton Mifflin, 1976
Buku Referensi