Khanna B., . (1988). Practical Costing / B.S.Khanna. : New Delhi : S.Chand & Company.
Khanna B.S, . 1988. Practical Costing / B.S.Khanna. : New Delhi : S.Chand & Company.
Khanna B.S, . Practical Costing / B.S.Khanna. : New Delhi : S.Chand & Company. 1988.