Sharma, S. (1989). Productivity measurement: An accounting. Akashdeep.
Chicago-čujuhus (17. p.)Sharma, S.G. Productivity Measurement: An Accounting. Delhi: Akashdeep, 1989.
MLA-čujuhus (9. p.)Sharma, S.G. Productivity Measurement: An Accounting. Akashdeep, 1989.
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