Kolambe Ranjan. (2021). UPSC MPSC Vidnyan Ani Tantradnyan (9th ed.). Bhagirath Prakashan.
Chicago-čujuhus (17. p.)Kolambe Ranjan. UPSC MPSC Vidnyan Ani Tantradnyan. 9th ed. Pune: Bhagirath Prakashan, 2021.
MLA-čujuhus (9. p.)Kolambe Ranjan. UPSC MPSC Vidnyan Ani Tantradnyan. 9th ed. Bhagirath Prakashan, 2021.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.