@book{Boyce_DiPrima_2013, address={[Hoboken, N.J.]}, edition={Tenth edition, International student version}, title={Elementary differential equations and boundary value problems}, publisher={Wiley}, author={Boyce, William E. and DiPrima, Richard C.}, year={2013} }
@book{Jeffrey_1992, address={London}, title={Essentials of engineering mathematics: worked examples and problems}, publisher={Chapman & Hall}, author={Jeffrey, Alan}, year={1992} }
@book{Salas_Hille_Etgen, address={Hoboken, N.J.}, edition={Tenth edition}, title={Calculus: one and several variables}, publisher={John Wiley & Sons}, author={Salas, Saturnino L. and Hille, Einar and Etgen, Garret J.} }
@book{Weir_Hass_Thomas_2010, address={Boston, Mass}, edition={12th ed., Global ed}, title={Thomas’ calculus}, publisher={Pearson Education}, author={Weir, Maurice D. and Hass, Joel and Thomas, George B.}, year={2010} }