Sigala M, P Jones, A Lockwood and D Airey (2005). “Productivity in Hotels: A Stepwise Data Envelopment Analysis of Hotels’ Rooms Division Processes.” Service Industries Journal 25(1): 61-81.

Sigala M, P Jones, A Lockwood and D Airey (2005). “Productivity in Hotels: A Stepwise Data Envelopment Analysis of Hotels’ Rooms Division Processes.” Service Industries Journal 25(1): 61-81.

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