Abstract factory (Catalan Wikipedia)

Analysis of information sources in references of the Wikipedia article "Abstract factory" in Catalan language version.

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4,347^th place

2,972^nd place

oreilly.com

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Freeman, Eric; Robson, Elisabeth; Sierra, Kathy; Bates, Bert. Head First Design Patterns (paperback) (en anglès). 1. O'REILLY, 2004, p. 156. ISBN 978-0-596-00712-6 [Consulta: 12 setembre 2012].