To determine which source can be regarded as a popular source, I would need specific information or context from Source 1 and Source 2. Typically, popular sources are characterized by their accessibility, appeal to a general audience, and often include general interest articles, magazines, or websites. Academic journals and scholarly articles, on the other hand, are usually considered scholarly sources.
If you can provide details or summaries of Source 1 and Source 2, I'd be happy to help you analyze them!