Critics' evaluation on whether The Crucible is a tragedy or not ?

I have to talk about various critics' evaluation on The Crucible as a tragedy however all I can find are critics talking about the crucible as a whole . They just sort of talk about morality and whether its a good book or not ... not really whether its a TRAGEDY or not . If anyone knows any websites or whatever with critics talking about whether The Crucible was or was not a tragedy , please tell me !!