Resources
Several books provide pointers:
Parents and Adolescents Living Together, Part 1 and 2, by Patterson
Parenting the Strong Willed Child, by Forehand and Long
The Kazdin Method for Parenting the Defiant Child, by Kazdin
SOS for Parents, by Clark
Websites
The CDC has excellent parenting videos
https://www.cdc.gov/parents/essentials/videos/index.html