Cita APA (7th ed.)

KALAVATHY S. (2006). OPERATIONS RESEARCH (2 ND.). VIKAS PUBLISHING HOUSE PVT. LTD.

Cita Chicago (17th ed.)

KALAVATHY S. OPERATIONS RESEARCH. 2 ND. NEW DELHI: VIKAS PUBLISHING HOUSE PVT. LTD, 2006.

Cita MLA (9th ed.)

KALAVATHY S. OPERATIONS RESEARCH. 2 ND. VIKAS PUBLISHING HOUSE PVT. LTD, 2006.