APA-čujuhus (7. p.)

HBR. HBR`s 10 must reads. HBR.

Chicago-čujuhus (17. p.)

HBR. HBR`s 10 Must Reads. Boston: HBR.

MLA-čujuhus (9. p.)

HBR. HBR`s 10 Must Reads. HBR.

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