Most of those free PDFs are scanned copies of the 5th, 6th, or 7th editions. The print quality is often terrible (faded text, skewed pages), and the binding in the scan usually cuts off the edges of complex matrices.
In the world of management science and mathematical optimization, few textbooks hold as much authority in the Indian subcontinent as . For decades, this comprehensive volume has served as the "bible" for students of commerce, engineering, and management. operations research by kanti swarup pk gupta manmohan pdf