Tjalling Koopmans: Perbezaan antara semakan
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Baris 36:
* Scarf, Herbert E., [https://web.archive.org/web/20060901092041/http://newton.nap.edu/html/biomems/tkoopmans.html "Tjalling Charles Koopmans: August 28, 1910 – February 26, 1985"], ''National Academy of Science''
* [https://ideas.repec.org/e/pko26.html IDEAS/RePEc]
* {{Cite book |title=Tjalling Charles Koopmans (1910–1985) |url=http://www.econlib.org/library/Enc/bios/Koopmans.html |work=The Concise Encyclopedia of Economics |edition=2nd |series=Library of Economics and Liberty|publisher=
* [https://www.informs.org/About-INFORMS/History-and-Traditions/Biographical-Profiles/Koopmans-Tjalling-C Biography of Tjalling Koopmans] from the Institute for Operations Research and the Management Sciences
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