(原始内容存档于2016-02-05). Collins, Karen A; Kielkopf, John F; Stassun, Keivan G. Transit Timing Variation Measurements of WASP-12b and Qatar-1b: No Evidence for
2006 [4 April 2012]. Cowry's 'tap to ride' contactless payment is making transit easier for Lagosians to commute during the pandemic. The Guardian Nigeria