General question about value betting the river

[PantherZ]

There are countless posts on these forums and hand examples in books like SSH on value betting the river, even when a scare card comes. I'll frequently see a post where a player is chided for checking on a scary board. "You had a clear value bet on the river."

That's fine.

But these hand examples in books and responses to posted hands virtually never say what to do when you get raised. Am I to assume that generally you should be calling these raises?

Thanks.