http://www.ece.jhu.edu/~cooper/courses/214/signalsandsystemsnotes.pdf

http://www.ingelec.uns.edu.ar/pds2803/Materiales/LibrosPDF/Papoulis/TOC.HTM

http://books.google.com/books/about/Lectures_on_Fourier_Integrals.html?id=-vU02QewWK8C

http://books.google.com/books/about/Schaum_s_outline_of_theory_and_problems.html?

id=DYBUAAAAMAAJhttp://books.google.com/books?id=JZeO6VTRaIsC&lpg=PP1&pg=PP1#v=onepage&q&f=false

http://books.google.com/books?id=uZgLLAS4vfoC&pg=PA59&lpg=PA59&dq=exam+for+fourier+series+%26+Fourier+integral&source=bl&ots=6kSkgpGnon&sig=ZXY2VlhYgHWhKLifK7_sVh-ItjQ&hl=fa&sa=X&ei=W_QlUJ-BKoTKswaL0IFw&ved=0CEwQ6AEwAzge#v=onepage&q=exam%20for%20fourier%20series%20%26%20Fourier%20integral&f=false

http://books.google.com/books/about/Advanced_Engineering_Mathematics.html?id=TfO_QgAACAAJ

http://www.e-booksdirectory.com/listing.php?category=52

http://www.latp.univ-mrs.fr/~chaabi/ARTICLES%20IMPORTANTS/Autres%20articles%20interessant/Livres/Partial%20difference%20equation.pdf

http://ocw.mit.edu/courses/mathematics/18-103-fourier-analysis-theory-and-applications-spring-2004/lecture-notes/

http://www.freebookcentre.net/maths-books-download/Fourier-Analysis-ebook.html

http://www.freebookcentre.net/maths-books-download/Fourier-Series-pdf.html

http://www.freebookcentre.net/maths-books-download/Fourier-Series.html

http://www.freebookcentre.net/maths-books-download/Fourier-Series-notes-presentation.html

http://www.freebookcentre.net/maths-books-download/Fourier-Series-and-Fourier-Transforms.html

http://www.freebookcentre.net/maths-books-download/Microsoft-PowerPoint-Fourier-transform.ppt.html

http://www.freebookcentre.net/maths-books-download/The-Fourier-Transform-and-applications.html

http://www.freebookcentre.net/maths-books-download/The-Fourier-Transform-notes-Slides.html

http://www.svce.ac.in/departments/maths/Lapref.pdf