Note: Some books are on the restricted book shelf!
Complex Analysis, J M Howie (Springer 2003). Library Ref. 515.24 HOW
Murray R. Spiegel: Theory and problems of complex variables. (510.76 Spi).
Donald W. Trim: Introduction to Complex analysis and its applications. (515.24 Tri).
Advanced Engineering Mathematics, 8th ed. E. Kreyszig (Wiley 1999). Library Ref. 510.245 KRE