Kumar Vinay G.B. (2022). History Question Bank For Civil Services Preliminary Examination (3TH.). Mc Grow Hill Education (India).
Chicago-referens (17:e uppl.)Kumar Vinay G.B. History Question Bank For Civil Services Preliminary Examination. 3TH. Chennai: Mc Grow Hill Education (India), 2022.
MLA-referens (9:e uppl.)Kumar Vinay G.B. History Question Bank For Civil Services Preliminary Examination. 3TH. Mc Grow Hill Education (India), 2022.
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