What is a credible peer-reviewed source?

Read these passages from when birds get flu and cows go mad by john

What is the theme of "the necklace"

Why did orson welles change the beginning of the war of the worlds for his radio broadcast? a. to capture the attention of his listeners, who may have been doing other things b. to get around copyright laws associated with using material from a published book c. to ask members of the audience to call family and friends and encourage them to listen d. to remind listeners to call police for more information