how to find a good sourse for research paper

"Sex Ed for Kindergarteners 'Right Thing to Do,' Says Obama "I find this article from a website called ABC news. My topic is should student have sex education in early age, i think is better to have sex education in early age so i am looking for some information to proof my idea, when i saw this topic is the same opinion with me and the author is prisident Obama which is really good and powerful so i choose this ariticle as one of my souse.