edited by Louis G. Locke, William M. Gibson, George W. Arms
Holt, Rinehart and Winston, 1961
Buku Teks SO
Cramer, Gail L.
John Wiley & Sons, 1979
Buku Teks
Hillier, Frederick S.
McGraw-Hill, 1990
Buku Teks SO
edited by Alex Heller, Myles Tierney
Academic Press, 1976
Buku Teks SO
Michiels, Ivo
De Bezige Bij, 1973
Buku Teks