1. Henry Ford's famous comment about the Model ‘T’ introduced in 1930.
2. Sople V.V. (2010), Logistics Management, Pearson, New Delhi, 2nd edition, pp. 24.
3. Fitzsimmons James A. and Mona J. Fitzsimmons (2006), Service Management, Tata McGraw Hill, New Delhi, pp. 131.
4. Sople V.V. (2010), Logistics Management, Pearson, New Delhi, 2nd edition, pp. 26.
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