He tried his best to help you. He replied with what he thought to be best in his opinion. Thought you are right that you asked for different kind of books ,but he replied with a better answer. And told you to prepare from books recommended by FPSC . Aspirants who study these books achieve higher scores. I have seen many people who got top positions saying this thing that they prepared from Fpsc recommended books and that they gave references from them. Paper checker wants you to give an answer which is taken from these books,this is why they are said to be recommended ones. Hope you understand and don't say degrading things because most of the people give a lot of time and effort here to help others.
In the same way one can say that you have posted in wrong section. Discussion section is supposed to be for disscussions on different topics. Your must post this type of queries in subject selection section.

For psychology, weyne weitin, Robert Feldman.
And, for philosophy go to website named muslimphilosohy.org. It has got a book named A history of Muslim Philosophy and it's free and legal to read that book from there. Muslim philosophy will cover half of your philosophy syllabus.

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''Sufficient for us is Allah , and He is the best Disposer of affairs" Al-Quran