Conant, James B., author
McGraw-Hill, 1964
Buku Teks
Noor, Abdun, author
World Bank, 1981
Buku Teks
Stoff, Sheldon Ptaschevitch, author
Harper & Row , 1969
Buku Teks
Marland, Sidney P., author
McGraw-Hill, 1974
Buku Teks
Hallahan, Daniel P., author
Allyn and Bacon, 1994
Buku Teks