(First of all I know they changed the names of the resorts so I can't remember which resort is PO Riverside: "old" Port Orleans or "old" Dixie Landings; so I have included both.)
CAVEAT: The books lists from Resort to Park, not from Park to Resort.
"old" Dixie Landings to:
Magic Kingdom ... 11-36 minutes
Epcot ... 9-33 minutes
MGM ... 9-34 minutes
Animal Kingdom ... 14-43 minutes
Typhoon Lagoon ... 9-35 minutes
Downtown Disney ... 15-40 minutes
Blizzard Beach ... 22-49 minutes
"old" Port Orleans to
Magic Kingdom ... 19-39 minutes
Epcot ... 15-35 minutes
MGM ... 17-37 minutes
Animal Kingdom ... 25-43 minutes
Typhoon Lagoon ... 16-36 minutes
Downtown Disney ... 24-44 minutes
Blizzard Beach ... 37-57 minutes
Other destinations are not listed.