What cheap bus system can i take from Marysville to Barstow?|169530

I need to leave Dec 7 from Marysville,CA to Barsow, Ca by bus and i need to find a cheap bus system and early.

amtrak would be your best bet
Marysville, CA
(MRV)
8:55 am
08-DEC-08 Stockton, CA
(SKN)
11:35 am
08-DEC-08 2h 40m 1 Reserved Thruway Seat
714 San Joaquin
Stockton, CA
(SKN)
11:49 am
08-DEC-08 Bakersfield, CA
(BFD)
4:11 pm
08-DEC-08 4h 22m Checked baggage, Snack car, Onboard wheelchair ramp 1 Reserved Coach Seat
4214 Bus
Bakersfield, CA
(BFD)
4:20 pm
08-DEC-08 Barstow, CA
(BAR)
7:05 pm
08-DEC-08 2h 45m