Hi, am doing a project on setswana proverbs and their english equivalents. Now, what I want to know is that where can I get information basing on the topic I've just asked, if I can get sources like books etc.

I don't know about books on the subject. But, you might give the following link a try.

setswana proverbs - Google Search

Get the book by Sol Plaatjies , Setswana Proverbs and their English Equivalents