Ellet William. (2007). Case Study Handbook: How to Read , Diacuss and Write Persuasively About Cases. HBR.
Chicago-viite (17. p.)Ellet William. Case Study Handbook: How to Read , Diacuss and Write Persuasively About Cases. USA: HBR, 2007.
MLA-viite (9. p.)Ellet William. Case Study Handbook: How to Read , Diacuss and Write Persuasively About Cases. HBR, 2007.
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