McNichols, Thomas J.
McGraw-Hill, 1967
Buku Teks
McNichols, Thomas J.
McGraw-Hill, 1972
Buku Teks
edited by Merwin M. Hargrove, Ike H. Harrison and Eugene L. Swearingen
Irwin, 1966
Buku Teks
Glueck, William F.
McGraw-Hill, 1972
Buku Teks
Farmer, Richard N.
Wadsworth, 1969
Buku Teks