www.math.columbia.edu/~rf/complex2.pdf

http://cnx.org/content/m10505/latest/

www.math.odu.edu/~jhh/ch25.PDF

http://www.google.com/url?sa=t&rct=j&q=derivative+of+complex+function&source=web&cd=2&ved=0CEkQFjAB&url=http%3A%2F%2Fwww2.latech.edu%2F~schroder%2Fslides%2Fcomp_var%2F6_differentiation.pdf&ei=2XMmUPLSHciJhQeQzoCYBw&usg=AFQjCNEXjI069tjyFuJCXD07NxRvq6RASQ

http://www.google.com/url?sa=t&rct=j&q=derivative+of+complex+function&source=web&cd=3&ved=0CEsQFjAC&url=http%3A%2F%2Fwww.ams.org%2Fbookstore%2Fpspdf%2Fmbk-49-prev.pdf&ei=2XMmUPLSHciJhQeQzoCYBw&usg=AFQjCNE3MCKLgBM_O32tXDAwIKZzpXkDDA

http://www.google.com/url?sa=t&rct=j&q=derivative+of+complex+function&source=web&cd=9&ved=0CGEQFjAI&url=http%3A%2F%2Fwww.math.umn.edu%2F~olver%2Fam_%2Fc.pdf&ei=2XMmUPLSHciJhQeQzoCYBw&usg=AFQjCNFzZ8DR_XbS08rJKnYw9autP10e8A

http://www.math.psu.edu/yzheng/m597k/m597kLII2.pdf

http://en.wikipedia.org/wiki/Pole_(complex_analysis)

http://math.sfsu.edu/beck/papers/complex.pdf

http://www.math.columbia.edu/~rf/complex2.pdf

http://rutherglen.science.mq.edu.au/wchen/lnicafolder/ica03.pdf

http://www.ams.org/bookstore/pspdf/mbk-49-prev.pdf

http://chaos.swarthmore.edu/courses/Physics50_2008/09_Complex.pdf

http://www.math.columbia.edu/~ikofman/complexproblems.pdf

http://en.wikipedia.org/wiki/Complex_logarithm

http://www.mathstat.dal.ca/~ghandeh/MATH4020/

http://s-mat-pcs.oulu.fi/~ssa/Eka/kaharj.html