Roka, P. (2011). Bhagavad Gita on Effective Leadership. Jaico.
Chicago-čujuhus (17. p.)Roka, Pujan. Bhagavad Gita on Effective Leadership. Mumbai: Jaico, 2011.
MLA-čujuhus (9. p.)Roka, Pujan. Bhagavad Gita on Effective Leadership. Jaico, 2011.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.