I have to find 8 credible sources that preferably doesn’t lack in academic merit

I have to find 8 credible sources that preferably doesn’t lack in academic merit and write at least 5 sentences summarizing the source, establishing the credibility of the source, and how I will use it in the argument. The sources have to relate to my research question: “Are single dads or single moms statistically better at raising children?” The sources must be cited in MLA format.