Business Management / Biznes Upravlenie. D.A.Tsenov Academy of Economics.
Chicagoスタイル(17版)引用形式Business Management / Biznes Upravlenie. D.A.Tsenov Academy of Economics.
MLA(9版)引用形式Business Management / Biznes Upravlenie. D.A.Tsenov Academy of Economics.
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