Ramamurthy, P. (2007). Operations research (2nd.). New Age International.
Chicago-čujuhus (17. p.)Ramamurthy, P. Operations Research. 2nd. New Delhi: New Age International, 2007.
MLA-čujuhus (9. p.)Ramamurthy, P. Operations Research. 2nd. New Age International, 2007.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.