Cal Ripken Jr.'s Advice For Orioles? 'Don't Do Anything Different' In Playoffs - PressBox
Cal Ripken Jr #20 Values - MAVIN
Topps Project 2020 Cal Ripken Jr. #20 by Jacob Rochester - Print Run: 1576 (IN HAND)
Lou Gehrig and Cal Ripken Jr.: Two Quiet Heroes – Society for American Baseball Research
The Streak by John Eisenberg - Ebook
Press Box Access
Untold tales of Cal Ripken Jr., the Iron Man who saved baseball - ESPN
Cal Ripken Jr. Archives - PressBox
Cal Ripken Jr Checklist - Supercollector Catalog
Cal Ripken Jr Checklist - Supercollector Catalog