Answer :
Final answer:
For researching the success of colonies without British rule, Austin should consider reputable sources like American scholarly journals and contemporary newspapers.
Explanation:
An American scholarly journal that focuses on the success of colonies without British rule would be a reputable source for Austin's research. These journals provide in-depth analysis and research-based evidence.
A copy of an American newspaper from shortly after the Revolutionary War could also be a reliable source, offering firsthand accounts and perspectives from that time period.
A patriotic website focused on the Revolutionary War may lack the scholarly rigor and objectivity needed for academic research.
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