Rujukan Visa_Inc.

  1. ↑ Leuty, Ron (September 13, 2012). "Visa moving headquarters from San Francisco to Foster City". San Francisco Business Times. Dicapai February 27, 2013. [Visa] said Thursday that it is closing its headquarters in San Francisco and moving about 100 employees back to its Foster City campus, effective Oct. 1. [...] The bulk of the company's employees—3,100 of more than 7,700 worldwide... are in Foster City. 
  2. 1 2 3 4 5 "2017 Income Statement, Visa Inc". NASDAQ. 
  3. ↑ "Visa Inc. at a Glance" (PDF). Visa Inc. Dicapai April 25, 2015. 
  4. ↑ Visa. Retrieved March 26, 2010.
  5. ↑ "Inside Visa's Data Center | Network Computing". www.networkcomputing.com. Dicapai 2016-05-01. 
  6. ↑ Fisher, Daniel (2015-05-25). "Visa Moves at the Speed of Money". Forbes. Dicapai 2016-05-01. 
  7. ↑ Swartz, Jon (25 March 2012). "Top secret Visa data center banks on security, even has moat". USA Today. Dicapai 20 February 2017. 
  8. 1 2 "UnionPay takes top spot from Visa in $22 trillion global cards market – RBR". Finextra. London: Finextra Research Limited. 22 July 2016.