Litvak, Isaiah A.
McGraw-Hill Ryerson, 1984
Buku Teks
Chatterjee, S.K.
Martinus Nijhoff Publishers, 1981
Buku Teks
Griffin, Ricky W.
Prentice-Hall, 2002
Buku Teks
Griffin, Ricky W.
Prentice-Hall, 2002
Buku Teks
Griffin, Ricky W.
Addison-Wesley, 1995
Buku Teks