CSS Forums - In need of recommendation for relevant study material

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In need of recommendation for relevant study material

[FONT="Times New Roman"]Subject: The following is addressed to those who have gone through the whole voyage of civil service induction procedure and have gained valuable insight.
It's futile to reinvent the wheel.

My optional for CE-2019 are following:
Pol Science 200
Anthropology 100
Gender 100
Public Administration 100
British History 100
Philosophy 100

Please suggest relevant course materials, books, links, approaches, tricks and newly induced changes in paper pattern.
Thanks in advance.

P.S: Some veteran seniors advised me to prepare 700 mark papers instead of 600.[SIZE="3"][SIZE="4"][/SIZE][/SIZE][/FONT]

“Allah will not be merciful to those who are not merciful to people.” Source: Ṣaḥīḥ a

I know every one is busy in preps but can someone please help.