as far as my personal point of view is concerned.. dont rely on academy notes. firstly, because most of those notes are seemed to be out dated and not according to current scenario. secondly because they provide you just limited material which cannot be used in analytical and opinion based questions. try to make your own notes by using different sources likes good books, newspaper, JWT and different valuable sites, in this regard you could extract some relevant points from those academy notes but dont solely rely on them.
this is my personal view. any suggestion along with correction will be highly appreciated. thanks

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