Stockton, CA to California Institute of Integral Studies buses and trains from $21

Here are some trips other travelers have found on Routefriend.
$21
3h 25m
2 stops
Amtrak BART
$45
2h 0m
1 stop
Amtrak BART
$47
2h 10m
1 stop
Amtrak BART
$?
1h 55m
0 stops
Amtrak