From the Tango to the Brazuca via the Jabulani: A brief history of the World Cup ball, The Independent

With the release of the ball that will be used in Brazil next summer, we take a look through the evolution and varied responses its predecessors were met with

Football knowledge. Some Interesting Facts about Football…, by Sadiaa Noreen

Ahead of the Brazuca reveal we take a look back at the history of adidas World Cup balls. - SoccerBible

Study shows Brazuca is better than Jabulani

The Complete History of the FIFA World Cup™ Ball

All official World Cup Balls, from 1930 to the just presented Brazuca. : r/soccer

500 Jabulani v £150 Brazuca v £100 Telstar

Vuvuzela, Jabulani, Caxirola & Brazuca – Soccer Politics / The Politics of Football

Ahead of the Brazuca reveal we take a look back at the history of adidas World Cup balls. - SoccerBible

NASA says adidas' brazuca ball is better than Jabulani because duh (and science)

World Cup balls: From Telstar and Tango to Jabulani and Brazuca, the evolution and innovation of footballs