braydie
commented
8 years ago hey @ImDineshSaini, unfortunately we can't merge your pull request because the links you've provided are ebooks that are currently for sale and we would get into some legal issues by linking to 'free' copies. If you're able to find some truly free ebooks then we'd be able to merge them into the bibliography - or better yet, if you find they are relevant to a particular section then we can add them as resources
This is cost effective solution for Asia and Africa countries as very few people were able to purchase hard copy there.