Kapoor, V. (1999). Operational Research (4.). S. Chand & Co.
Lua i Stíl Chicago (17ú heag.)Kapoor, V.K. Operational Research. 4. New Delhi: S. Chand & Co, 1999.
Lua MLA (9ú heag.)Kapoor, V.K. Operational Research. 4. S. Chand & Co, 1999.
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