Lang JR and PA Golden (1989). “Evaluating the Efficiency of Sbdcs with Data Envelopment Analysis: A Longitudinal Approach.” J Small Business Management 27(2): 42-49.

Lang JR and PA Golden (1989). “Evaluating the Efficiency of Sbdcs with Data Envelopment Analysis: A Longitudinal Approach.” J Small Business Management 27(2): 42-49.

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