Andersen, A.H. (1984), Forlaesnings Noter til Statistik I, Department of Theoretical Statistics, Aarhus University.
[ Published lecture notes for undergraduate statistics course. ]

Bapat, R.B. (2000), Linear Algebra and Linear Models (2nd. Edition), Springer-Verlag, New York

Neave, H.R. (1979), Elementary Statistical Tables, Routledge, London.

Press, W.H. et al (1992), Numerical Recipes in C, Cambridge University Press.
[ You can now view Numerical Recipes in PDF format at the Cornell University site. ]

Stephenson, G. (1961), Mathematical Methods for Science Students, Longman, London.

Williams, D. (1991), Probability with Martingales, Cambridge University Press.