Kolambe Ranjan. (2021). UPSC MPSC Vidnyan Ani Tantradnyan (9th ed.). Bhagirath Prakashan.
Chicago-viite (17. p.)Kolambe Ranjan. UPSC MPSC Vidnyan Ani Tantradnyan. 9th ed. Pune: Bhagirath Prakashan, 2021.
MLA-viite (9. p.)Kolambe Ranjan. UPSC MPSC Vidnyan Ani Tantradnyan. 9th ed. Bhagirath Prakashan, 2021.
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