1.
Boyce, W. E. & DiPrima, R. C. Elementary Differential Equations and Boundary Value Problems. (Wiley, [Hoboken, N.J.], 2013).
2.
Salas, S. L., Hille, E. & Etgen, G. J. Calculus: One and Several Variables. (John Wiley & Sons, Hoboken, N.J.).
3.
Jeffrey, A. Essentials of Engineering Mathematics: Worked Examples and Problems. (Chapman & Hall, London, 1992).
4.
Weir, M. D., Hass, J. & Thomas, G. B. Thomas’ Calculus. (Pearson Education, Boston, Mass, 2010).