New Vishal Publication. (2021). Upsc-Civil Services Exam General studies (Preliminary)Paper1&Paper2. New Vishal Publication.
Chicagoスタイル(17版)引用形式New Vishal Publication. Upsc-Civil Services Exam General Studies (Preliminary)Paper1&Paper2. New Delhi: New Vishal Publication, 2021.
MLA(9版)引用形式New Vishal Publication. Upsc-Civil Services Exam General Studies (Preliminary)Paper1&Paper2. New Vishal Publication, 2021.
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