Heyman, Daniel P.
McGraw-Hill, 1982
Buku Teks
King, Alan J.
[, Springer], 2012
eBooks
edited by W.T. Ziemba, R.G. Vickson
Academic Press, 1975
Buku Teks
Coleman, Rodney
George Allen & Unwin, 1974
Buku Teks
Srinavasan, S.K.
Tata McGraw-Hill, 1988
Buku Teks SO