APA-ийн эшлэл(7 дахь хэвлэлт)

Singh Surender & Parmar Virinder. (2024). General Studies for Civil Services Preliminary Examination: Also useful for State Public Service Commission Examinations Paper-I. Mc Graw Hill.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Singh Surender ба Parmar Virinder. General Studies for Civil Services Preliminary Examination: Also Useful for State Public Service Commission Examinations Paper-I. Chennai: Mc Graw Hill, 2024.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Singh Surender ба Parmar Virinder. General Studies for Civil Services Preliminary Examination: Also Useful for State Public Service Commission Examinations Paper-I. Mc Graw Hill, 2024.