5 Step System for Creating Commercials
Copyright Law (Dan O'Day)
Copywrite Matters-Top Tips
How to Create Radio Commercials That Sell (Dan O'Day)
https://www.dropbox.com/s/3cycsgincmxo79p/How_to_Create_Radio_Commercials_That_Sell-Oday.pdf?dl=0
How To Write Selling Copy (Chris Lytle)
https://www.dropbox.com/s/7vave6edny5kk1o/How_to_Write_Selling_Copy-Chris_Lytle.pdf?dl=0