[1]
Riley, K. F., Hobson, M. P., and Bence, S. J., Mathematical methods for physics and engineering, 3rd ed. Cambridge: Cambridge University Press, 2006.
[2]
K. A. Stroud and D. J. Booth, Advanced Engineering Mathematics, 4th Revised edition. Gordonsville: Palgrave USA, 2003.
[3]
K. A. Stroud, Engineering mathematics. Basingstoke [England]: Palgrave Macmillan, 2007.