If these notes are those compiled by Sir Hafiz Arshad, then there is no doubt in their authenticity because most of the candidates use these notes for preparation. There are both complementary English & Urdu versions of the notes. Both these versions should be combined along with Ahmad Hassan Ziat's book for preparation leading to 150+ score.

__________________
Best end of life is not knowledge but action.
Don't limit yourself to what you think people are expecting!