Tohutoro APA (7th ed.)

Kothari, C. (1992). An introduction to operational research (3rded.). Vikas.

Tohutoru Kātū Chicago (17th ed.)

Kothari, C.R. An Introduction to Operational Research. 3rded. New Delhi: Vikas, 1992.

Tohutoro MLA (9th ed.)

Kothari, C.R. An Introduction to Operational Research. 3rded. Vikas, 1992.