Differential Equations: A Modern Approach by Harry Hochstadt Dover book

Mathematical Physics Functions and Methods by Hochstadt, Chisholm, Morris

Linear Algebra: A Pure Mathematical Approach by Harvey E. Rose (Paperback, 2002)

Bernard Friedman Principles & techniques of Applied Mathematics Hardback

Foundations of Physics by Lehrman and Swartz. 1965 Hardback edition. Printed USA

Special Functions of Mathematical Physics and Chemistry - Sneddon (1961)

Volume and Surface Integrals used in Physics by J. G. Leathem

Professor B Donovan/L Pincherle Elecctronic Energy Bands In Solids Hardback