APA-čujuhus (7. p.)

(1992). Birla Economic Research Foundation. Economic Research Division: Birla Economic Research Foundation. Allied.

Chicago-čujuhus (17. p.)

Birla Economic Research Foundation. Economic Research Division: Birla Economic Research Foundation. New Delhi.: Allied, 1992.

MLA-čujuhus (9. p.)

Birla Economic Research Foundation. Economic Research Division: Birla Economic Research Foundation. Allied, 1992.

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