Tohutoro APA (7th ed.)
Darmawan, B., Cox, K., & Ragab, B. (2004). Business service management best practices. IBM, International Technical Support Organization.
Tohutoru Kātū Chicago (17th ed.)
Darmawan, Budi, Kimberly Cox, me Bahaeldin Ragab. Business Service Management Best Practices. Austin, TX: IBM, International Technical Support Organization, 2004.
Tohutoro MLA (9th ed.)
Darmawan, Budi, et al. Business Service Management Best Practices. IBM, International Technical Support Organization, 2004.
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