Mittal, R. R. (2009). Spend management ; Increasing value performance and efficiency. Global India Publications Pvt. Ltd.
Lua i Stíl Chicago (17ú heag.)Mittal, Ravi Ranjan. Spend Management ; Increasing Value Performance and Efficiency. New Delhi: Global India Publications Pvt. Ltd, 2009.
Lua MLA (9ú heag.)Mittal, Ravi Ranjan. Spend Management ; Increasing Value Performance and Efficiency. Global India Publications Pvt. Ltd, 2009.
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