APA-ийн эшлэл(7 дахь хэвлэлт)

New Vishal Publication. (2019). IAS Preliminary Civil Services (Pre.)Exam General Studies Paper-2. New Vishal Publication.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

New Vishal Publication. IAS Preliminary Civil Services (Pre.)Exam General Studies Paper-2. New Delhi: New Vishal Publication, 2019.

MLA -ийн эшлэл (9 дэх хэвлэлт)

New Vishal Publication. IAS Preliminary Civil Services (Pre.)Exam General Studies Paper-2. New Vishal Publication, 2019.