Answer:
the source is published in a reputable magazine.
Explanation:
A source is credible —that is to say, it is reliable and can easily be corroborated and reviewed— if the author is published in a reputable journal or magazine. These latter ones have strict publishing standards and outlines —based, mostly, on the quality of the researcher´s topic, writing, argumentation, and logic— that filter out solid and credible research from weak and otherwise unreliable information.
