Churchman, Charles West, 1913-, author
Wiley, 1957
Buku Teks
Churchman, Charles West, 1913-, author
John Wiley & Sons, 1961
Buku Teks
Johnson, Ross H., author
Houghton Miffiln, 1976
Buku Teks
Johnson, Richard A., author
McGraw-Hill, 1973
Buku Teks
edited by I. Arjang Assad, Edward A. Wasil, Gary L. Lilien
Prentice-Hall, 1992
Buku Referensi