Lawson, Tom R., author
Routledge, 2019
Buku Teks
Malle, Michael A., author
J.B. Lippincott, 1977
Buku Teks
Healey, Joseph F., 1945-, author
Cengage Learning, 2015
Buku Teks
Healey, Joseph F., 1945-, author
Wadsworth, 1996
Buku Teks
Fisher, Ronald A., author
Oliver and Boyd , 1950
Buku Teks