ڈرنکنگ برڈ (کھلونا) (Urdu Wikipedia)

Analysis of information sources in references of the Wikipedia article "ڈرنکنگ برڈ (کھلونا)" in Urdu language version.

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archive.org

  • Yakov Perelman (1972) [1936]۔ Physics for Entertainment۔ 2۔ صفحہ: 175–178۔ ISBN 978-1401309213 

books.google.com

  • "Miles V. Sullivan [..] is a member of the Photolithography Group in the Bipolar IC ... He is probably best known as the inventor of the “perpetually” drinking bird novelty." Bell Laboratories record: Volume 52 1974

physicscentral.com

  • American Physical Society (2012)۔ "Insatiable Birdie"۔ American Physical Society, with permission of the Hyperion(Reprint edition)