The odds might be slim, but collectors shouldn't give up on coming across a 'find' - Sports Collectors Digest
Ken Griffey Jr. Baseball Cards
07-27-18 Edition, PDF, Oregon
Baseball Card Prices - CardMavin
The 30 Most Valuable Baseball Cards From 1990-1994
Sports Collectors Digest SCD Oct 1989 #3 Ken Griffey Jr. - collectibles - by owner - sale - craigslist
The Junior Junkie: the Baseball Cards of Ken Griffey, Jr. and Beyond
Ken Griffey, Jr. Matted 8 x 10 Photo - collectibles - by owner - sale - craigslist
The Junior Junkie: the Baseball Cards of Ken Griffey, Jr. and Beyond