Pro Football Journal: Ken Stabler HOF Ring and Jacket Controversy
Ken Stabler is voted into the Pro Football Hall of Fame
Pro Football Hall of Fame sticks to policy: No ring, jacket for Ken Stabler, posthumous inductees
Classic Photos of John Madden - Sports Illustrated
KC Confidential, Hearne Christopher, Uncensored
Pro Football Hall of Fame sticks to policy: No ring, jacket for Ken Stabler, posthumous inductees
ILLINI Legends, Lists & Lore
Official Super Bowl 51 Game Program
The late Ken Stabler inducted into Pro Football Hall of Fame – East Bay Times
AFL History Taylor Blitz Times
Pro Football Journal: August 2021
Why was NFL Hall-of-Famer Ken Riley never selected for the Pro Bowl even once? - Quora
Ranking the greatest NFL draft classes of all time – NBC Sports Chicago