Bias/Agenda? | English

Bias - when you unfairly favour one side of an argument.
Source - where you got the information from.
Credible - factual, truthful, reliable
Authority - the author has good/in-depth knowledge of the subject 
Reliable - can trust that this information is correct.
Perspective - point of view, your way of seeing something 
Agenda - what you are trying to do e.g convince me of a fact
Manipulate - mould something into what you want it to be