Fraleigh, John B.
Addison-Wesley Publishing Co., 1994
Buku Teks
Shier, Douglas R.
Oxford University Press, 1991
Buku Teks
Ralph Crouch
J. Wiley , 1965
Buku Teks
Smith, Jonathan D.H.
CRC Press, Taylor & Francis Group, 2009
Buku Teks
Pinter, Charles C.
McGraw-Hill, 1982
Buku Teks