Yeah, sure!
1) Emporium Mcqs for English literature
2) Ilmi one liner capsule English literature
3) For Linguistics, as Linguistics has a small portion in the written exam, go through the glossary at the end of the book The Study of Language by George Yule.
4) Download M.A English course outline of GCU, PU, BZU & IUB and read the summaries of Dramas and Novels.
This takes only 20 days, if you are serious.
Your PPSC written exam will be done!
Consult for interview later on!