http://ece.ut.ac.ir/Classpages/F89/ECE359/HWs/HW9.pdf

http://www.engr.mun.ca/~egill/index_files/unit438212005.pdf

http://www.stanford.edu/~boyd/ee102/freq.pdf

http://cnx.org/content/m21475/latest/

http://fourier.eng.hmc.edu/e84/lectures/ch3/node1.html

http://www.ee.iitb.ac.in/~sequel/ee101/ee101_phasors_1.pdf

http://nptel.iitm.ac.in/courses/Webcourse-contents/IIT-KANPUR/esc102/node16.html

http://web.cecs.pdx.edu/~prasads/Phasors.pdf

http://www.digilentinc.com/classroom/realanalog/text/Chapter_2p7p2.pdf

http://www.ece.mtu.edu/faculty/goel/EE-2110/Prob-10.pdf

http://www.csee.wvu.edu/~schoder/ee221/EE221_Chpt10_ExamplesSol.pdf

http://www2.engr.arizona.edu/~mwm/classes/220/Homework/Homework_Assignments/Edition_8_Problems/Chapter_9_Problems.pdf

http://www.bookvc.com/Library/Book/31826/fa-IR

http://en.wikibooks.org/wiki/Circuit_Theory/Laplace_Transform

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

http://sces.phys.utk.edu/~moreo/mm08/sarina.pdf

http://people.seas.harvard.edu/~jones/es154/lectures/lecture_0/Laplace/laplace.html%20

http://www.didaktik.itn.liu.se/thesis/margarita_thesis3.pdf

http://home2.fvcc.edu/~dhicketh/DiffEqns/Spring11projects/jasondcreighton/final%20paper/paper.pdf

http://wdjoyner.com/teach/DiffyQ/de-networks.pdf

http://books.google.com/books/about/Electric_Circuit_Analysis.html?id=o1LFAGSijtkC

http://books.google.com/books?id=GXJ2tfECwV0C&pg=PA63&lpg=PA63&dq=Laplace+transform+%26+applications+in+electrical+circuit&source=bl&ots=tvcGWnFizk&sig=9silMur6CFhdck6dpebprjhwNNw&hl=fa&sa=X&ei=hTKzT-TiMM-F8gOMmfSbCQ&ved=0CE4Q6AEwATgU#v=onepage&q&f=false

http://books.google.com/books?id=Aj9blWqYg2YC&pg=PA327&lpg=PA327&dq=Laplace+transform+%26+applications+in+electrical+circuit&source=bl&ots=xXkoV8tBQc&sig=R14qUfN85TxPo-X9bdSYTFCa3aQ&hl=fa&sa=X&ei=hTKzT-TiMM-F8gOMmfSbCQ&ved=0CFoQ6AEwCDgU#v=onepage&q=Laplace%20transform%20%26%20applications%20in%20electrical%20circuit&f=false

http://www.google.com/url?sa=t&rct=j&q=Laplace+transform+%26+applications+in+electrical+circuit&source=web&cd=27&ved=0CFgQFjAGOBQ&url=http%3A%2F%2Fwww.stu.edu.vn%2Findex.php%3Fr%3Dsite%2FdownloadEbook%26id%3D182&ei=hTKzT-TiMM-F8gOMmfSbCQ&usg=AFQjCNGQv3D5rAbz_nApKSTTHfapYsL6dQ

http://staff.kmutt.ac.th/~Anawach.San/eee111/L4.pdf

http://staff.kmutt.ac.th/~Anawach.San/eee111.html

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

http://www.jhu.edu/signals/convolve/

http://www.cns.nyu.edu/~david/handouts/convolution.pdf

http://mathworld.wolfram.com/Convolution.html

http://www-structmed.cimr.cam.ac.uk/Course/Convolution/convolution.html

http://cnx.org/content/m11541/latest/

http://www.stanford.edu/~boyd/ee102/laplace.pdf

http://www.atp.ruhr-uni-bochum.de/rt1/syscontrol/node145.html

http://users.ece.gatech.edu/~bonnie/book/worked_problems/Chap3_cont_time_conv.pdf

http://faculty.atu.edu/mfinan/4243/section76.pdf

http://www.math.washington.edu/~palmieri/Courses/2012/Math135/convolution.pdf

http://ocw.mit.edu/resources/res-6-007-signals-and-systems-spring-2011/assignments/MITRES_6_007S11_hw04_sol.pdf

http://www.google.com/url?sa=t&rct=j&q=%D8%B4%D8%A8%DA%A9%D9%87+%D8%B3%D9%88%D8%AF%D9%87+%D8%AF%D8%B1+%D9%85%D8%AF%D8%A7%D8%B1%D9%87%D8%A7%DB%8C+%D8%A7%D9%84%DA%A9%D8%AA%D8%B1%DB%8C%DA%A9%DB%8C&source=web&cd=1&ved=0CEsQFjAA&url=http%3A%2F%2Fwww.pnu.ac.ir%2Fportal%2FFile%2FShowFile.aspx%3FID%3D244a4f98-11fe-418d-9a07-b795600d6cd2&ei=FYbUT9GfBM6S0QX2tZH_Aw&usg=AFQjCNEmT84o_rk05bW0GAGjLyIxl9gtPQ