50NL TPTK river decsion

[BevillTheDevil]

villian is 42/11/1.89 after 215 hands and folds to cbets about 80% of the time, I wasnt sure what was the best line here on the river??

No Limit Holdem Ring game
Blinds: $0.25/$0.50
6 players
Converter

Stack sizes:
UTG: $30.90
UTG+1: $82.84
CO: $40.70
Button: $60.70
Hero: $261.39
BB: $59.68

Pre-flop: (6 players) Hero is SB with A[img]/images/graemlins/spade.gif[/img] K[img]/images/graemlins/diamond.gif[/img]
UTG folds, UTG+1 calls, CO folds, Button calls, <font color="#cc0000">Hero raises to $3</font>, 2 folds, Button calls.

Flop: 4[img]/images/graemlins/club.gif[/img] 9[img]/images/graemlins/diamond.gif[/img] 3[img]/images/graemlins/spade.gif[/img] ($7, 2 players)
<font color="#cc0000">Hero bets $4</font>, Button calls.

Turn: A[img]/images/graemlins/heart.gif[/img] ($15, 2 players)
<font color="#cc0000">Hero bets $11</font>, Button calls.

River: J[img]/images/graemlins/club.gif[/img] ($37, 2 players)
Hero ??