Westerman George. (2014). Leading Digital Turning Technology intobusiness transformation. Harvard Bus. School.
Chicago-čujuhus (17. p.)Westerman George. Leading Digital Turning Technology Intobusiness Transformation. Boston: Harvard Bus. School, 2014.
MLA-čujuhus (9. p.)Westerman George. Leading Digital Turning Technology Intobusiness Transformation. Harvard Bus. School, 2014.
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