An encyclopedia entry, an American scholarly journal, and a copy of an American newspaper are reputable sources for Austin's essay research on the success of the colonies without British rule.
An encyclopedia entry about Great Britain's successes following American Independence would be a reputable source for Austin's research as it provides factual and well-researched information. Additionally, an American scholarly journal that focuses on modern business practices would offer in-depth analysis and scholarly insights on the topic. Lastly, a copy of an American newspaper from shortly after the Revolutionary War can provide firsthand accounts and perspectives from that historical period.
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