Refrences
http://en.wikipedia.org/wiki/Payment_system
http://en.m.wikipedia.org/wiki/E-commerce_payment_system#section_2
http://en.m.wikipedia.org/wiki/Smart_card#section_3
http://sixrevisions.com/tools/online-payment-systems/
http://www.limkokwing.net/portal/modulemat/chapter%207(1).pdf
http://sbinfocanada.about.com/od/onlinebusiness/a/onlinepayment.htm
http://blog.pixelcrayons.com/ecommerce/a-beginners-guide-to-payment-systems-for-e-commerce/
http://web.mit.edu/ecom/Spring1997/gr12/4ADVECOM.HTM
http://www.incharge.org/military-money/story/understanding-e-checks
http://www.nationwide.com/e-checking-account.jsp#tabs
https://www.citepayusa.com/payments/html/echeck.html
http://www.gatewayforindia.com/technology/e-checks.htm
http://www.vto.vt.edu/E-Check_Documentation.pdf
http://www.web-payment-software.com/
http://www.authorize.net
https://www.secure-fastcharge.com/docs/index.taf?topic=payerauth
http://www.neowave.com.my/9ways_to_minimize_frauds.asp
http://www.infosys.com/supply-chain/white-papers/Documents/fraud-management.pdf
http://www.youtube.com/?hl=ar
http://en.m.wikipedia.org/wiki/E-commerce_payment_system#section_2
http://en.m.wikipedia.org/wiki/Smart_card#section_3
http://sixrevisions.com/tools/online-payment-systems/
http://www.limkokwing.net/portal/modulemat/chapter%207(1).pdf
http://sbinfocanada.about.com/od/onlinebusiness/a/onlinepayment.htm
http://blog.pixelcrayons.com/ecommerce/a-beginners-guide-to-payment-systems-for-e-commerce/
http://web.mit.edu/ecom/Spring1997/gr12/4ADVECOM.HTM
http://www.incharge.org/military-money/story/understanding-e-checks
http://www.nationwide.com/e-checking-account.jsp#tabs
https://www.citepayusa.com/payments/html/echeck.html
http://www.gatewayforindia.com/technology/e-checks.htm
http://www.vto.vt.edu/E-Check_Documentation.pdf
http://www.web-payment-software.com/
http://www.authorize.net
https://www.secure-fastcharge.com/docs/index.taf?topic=payerauth
http://www.neowave.com.my/9ways_to_minimize_frauds.asp
http://www.infosys.com/supply-chain/white-papers/Documents/fraud-management.pdf
http://www.youtube.com/?hl=ar