Frantz, Harper W.
W.H. Freeman, 1968
Buku Teks SO
staff of Research and Education Association ; M. Fogiel, director
Research and Education Association, 1987
Buku Teks SO
Anderson, Arthur K.
John Wiley & Sons, 1953
Buku Teks SO
Shillady, Donald
Taylor and Francis, 2012
Multimedia
Bahl, B.S.
Buku Teks