@Urooj
AOA,
For sociology, consult "Sociology by Taga brothers" and second "Maccionis". These are recommended books.
For journalism, consult "Competitive journalism by Abid Tehami" and "Mass communication by Imtiaz Shahid". These are also recommended books. Besides these books, read DAWN daily to enrich your proficiency of English, journalism, and current affairs knowledge. In a nutshell, DAWN is the best newspaper especially for CSS. You don’t need to read whole newspaper, just read that portion which is important for exam point of view. Read its 1st page, editorial, opinion cum pages and take a bird’s eye view on national, international and business news.
Best of luck and remember me in your prayers. Jazak'ALLAH.
Profound regards,
RMKamran.