Perbezaan antara semakan "Bolak-balik angkasa lepas Challenger"

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== Rujukan ==
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==Bacaan lanjut==
* {{Cite book |last = Evans |first =Ben |year =2007 |title = Space shuttle challenger: ten journeys into the unknown
|url =https://books.google.com/books?id=MQjCF8Cc7HoC&lpg=PR1&dq=Space%20Shuttle%20Challenger%20disaster&pg=PR1#v=onepage&q&f=true |publisher=Published in association with Praxis Pub |isbn= 978-0-387-46355-1 |postscript = <!-- Bot inserted parameter. Either remove it; or change its value to "." for the cite to end in a ".", as necessary. -->{{inconsistent citations}} }}
* {{Cite book |last = Harris |first =Hugh |year =2014 |title = Challenger: An American Tragedy: The Inside Story from Launch Control
|url =https://books.google.com/books?id=cBJ7AgAAQBAJ&lpg=PP1&dq=challenger%20hugh%20harris&pg=PP1#v=onepage&q&f=false |publisher=Open Road Media |isbn= 9781480413504 |postscript = <!-- Bot inserted parameter. Either remove it; or change its value to "." for the cite to end in a ".", as necessary. -->{{inconsistent citations}} }}
 
== Pautan luar ==