Sackheim, George I.
Macmillan, 1968
Buku Teks
Nave, Carl R.
W.B. Saunders, 1983
Buku Teks
Burton, Gwendolyn R.W. (R. Wilson)
Lippincott Williams & Wilkins, 2000
Buku Teks
Engelkirk, Paul G.
Lippincott Williams & Wilkins, 2015
Buku Teks
Kuzma, Jan W.
McGraw-Hill, 2000
Buku Teks