APA-čujuhus (7. p.)

NIGAM WORLD OF KNOWLEDGE UNLOCK YOUR KNOWLEDGE- 5. SHETH PUBLISHING HOUSE.

Chicago-čujuhus (17. p.)

NIGAM WORLD OF KNOWLEDGE UNLOCK YOUR KNOWLEDGE- 5. MUMBAI: SHETH PUBLISHING HOUSE.

MLA-čujuhus (9. p.)

NIGAM WORLD OF KNOWLEDGE UNLOCK YOUR KNOWLEDGE- 5. SHETH PUBLISHING HOUSE.

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