Fundamentals of Differential Equations and Boundary Value Problems, 6th Edition. - R. Kent Nagle; Edward B. Saff; Arthur David Snider (Pearson Education, 2014)

Fundamentals of Differential Equations, 8th Edition. - R. Kent Nagle; Edward B. Saff; Arthur David Snider (Pearson Education, 2014)

Fundamentals of Complex Analysis Engineering Science, and Mathematics. - Edward B. Saff; Arthur David Snider (Pearson Education, 2014)