Soni, R., A K Sharma, & R K Saxena. (1982). Elements of business mathematics. Pitmabar.
Dyfyniad Arddull ChicagoSoni, R.S, A K Sharma, and R K Saxena. Elements of Business Mathematics. New Delhi: Pitmabar, 1982.
Dyfyniad MLASoni, R.S, et al. Elements of Business Mathematics. Pitmabar, 1982.
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