Katz, Daniel, author
Wiley, 1966
Buku Teks
Wrench, David F., author
McGraw-Hill, 1969
Buku Teks
Haslam, Alexander, author
Sage Publishing, 2001
Buku Teks
Archibald, W. Peter (William Peter), 1943-, author
McGraw-Hill Ryerson, 1978
Buku Teks
DeLamater, John D., author
Colorado Westview Press, 2014
Buku Teks