Final answer:
The most productive sources of information include news articles, Internet sites, and other people.
Step-by-step explanation:
The most productive sources for obtaining information can vary depending on the context and purpose of the research. However, in general, the most reliable and credible sources include news articles, Internet sites, and other people.
News articles provide current and well-researched information on various topics. Internet sites, especially those from reputable sources such as educational institutions or government organizations, can offer a wide range of information. Finally, interacting with and seeking information from other people can provide personal experiences and insights that cannot be found elsewhere.
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