Are there any scripture references that talk about...?

Are there any scripture references that talk about sexual immorality and how to stop it? I'm not talking about things like adultery, just pornography and masturbation. I don't care what faith you are or what book it's from. It could be from the New Testament, Old Testament, Book of Mormon, Doctrine and Covenants, Pearl of Great Price, etc... Any book works. Please don't tell me that masturbation is ok. It's MY opinion, MY choice, and MY chruch's belief that it's bad and it I want to stop.