$0.05/$0.10 No Limit Hold'em Cash, 6 Players
SB: $16.80 (168 bb)
Hero (BB): $10 (100 bb)
UTG: $20.24 (202.4 bb)
MP: $12.48 (124.8 bb)
CO: $10.58 (105.8 bb)
BTN: $18.21 (182.1 bb)
Preflop: Hero is BB with Q♣: A♥:
3 folds, BTN raises to $0.25, SB folds, Hero raises to $0.90, BTN calls $0.65
Flop: ($1.85) A♦: 6♥: 7♦: (2 players)
Hero bets $0.88, BTN calls $0.88
Turn: ($3.61) 3♣: (2 players)
Hero bets $1.72, BTN calls $1.72
River: ($7.05) 8♠: (2 players)
Hero 
No info on villain.
Should I bet river for value as he would have 4b AK often preflop or should I be x/calling or x/folding? I think that he can still have worse Ax in his calling range though.
E: I'm betting 1/2 pot on flop and turn but for some reason the hand history says that it is a little bit smaller..
