ASSALAM U ALAIKUM WA RAHMATULLAHAY WA BARAKATOHOO...!!!
How are you all? I hope fine...
First of all i have some query regards CE as to be answered by Seniors:
It is given that you have a choice to attempt Islamic studies paper either in urdu or English. So my query is what is best for aspirant to attempt it in urdu or English means which language will give you good score?
Now back to the thread title.
Suggest me best books for compulsory subjects (fixed so no need to mention them) and optional subjects which are:
1- International Relations
2- History of Pakistan and India / History of USA (Confused but suggest books for both of them)
3- Pure Mathematics and Applied Mathematics from Group 2/Gender studies and Constitutional Law from Group 5 and 6 respectively (Confused but suggest books for all of them)
4- Psychology
Positive replies will be highly appreciated.
Thanks in advance.

Wsalam.
Choice of language doesn't affect one's marks, choice of content does. Attempt the paper in the language in which you feel comfortable. All my life I studied Islamic studies in Urdu so I solved the paper in Urdu and I got a pretty decent score of 64 with the least preparation.
Hope some one else comes up with the reply of your second query.

Thanks for the reply, it really clears my mind about language. I really appreciate it.