Singh, D. (1970). Provident funds in India: A study in investment management. Sole distributors: Students Agency].
Chicago-viite (17. p.)Singh, Dool. Provident Funds in India: A Study in Investment Management. [Pilani: Sole distributors: Students Agency], 1970.
MLA-viite (8. p.)Singh, Dool. Provident Funds in India: A Study in Investment Management. Sole distributors: Students Agency], 1970.
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