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21
Stipanuk, David M., 591.901-S859w | Educational Institute of the American Hotel & Motel Association | 1995 591.901-S859w,
22
Virts, William B., 591.9525-V819p | Educational Institute of the American Hotel & Motel Association | 1987 591.9525-V819p,
23
Rey, Anthony M., 594.8-R456m | Educational Institute of the American Hotel & Motel Association | 1985 594.8-R456m,
24
Allen, Thomas O., 572.6-A431p | Oil & Gas Consultants International | 1993 572.6-A431p,
25
Churchman, C. West, 566.2-C563i | John Wiley & Sons | 1957 566.2-C563i,
26
Buffa, Edwood S., 530.969-B929r | John Wiley & Sons | 1966 530.969-B929r,
27
Chiffriller, T F, 591.986-C534s | Van Nostrand Reinhold | 1982 591.986-C534s,
28
29
Khan, Mahmood A, 591.9825-K45f | Van Nostrand Reinhold | 1987 591.9825-K45f,
30
Christensen, G S, 563.1-C554o | Plenum | 1988 563.1-C554o,
1
Organisation for Economic Cooperation & Development [, ]
2
3
Organisation for Economic Cooperation & Development [, ]
4
INFORMS: Institute for Operations Research [, ]
5
Organisation for Economic Cooperation & Development [, ]
6
Organisation for Economic Cooperation & Development [, ]
7
INFORMS: Institute for Operations Research [, ]
8
Pakistan Journal of Statistics & Operations Research [, ]
9
Organisation for Economic Cooperation & Development [, ]
10
Taylor & Francis Ltd [, ]
11
INFORMS: Institute for Operations Research [, ]