Masterton, William L.
Brooks/Cole, 2009
Buku Teks
Masterton, William L.
Brooks/Cole Cengage Learning, 2012
Buku Teks
Masterton, William L.
Saunders Golden, 1997
Buku Teks
Gordon M. Barrow ... [et.al.]
W.A. Benjamin, 1967
Buku Teks
Snyder, Milton K.
Holt Rinehart & Winston, [date of publication not identified]
Buku Teks