"Operations Research" by S.D. Sharma is a comprehensive textbook that covers the fundamental concepts and techniques of Operations Research. The book is widely used by students, researchers, and practitioners in the field of OR and related disciplines. The book provides a clear and concise introduction to the subject, covering topics such as:

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can be tricky because it is a copyrighted textbook published by Kedar Nath Ram Nath & Co .

Unfortunately, I couldn't find a direct link to download the PDF for free. However, you can try searching for the book on online libraries or websites that provide free e-books, such as: