What is Academic Plagiarism and why is academic integrity relevant to professionalism in a business environment? Please hive at least 3 definitions of Plagiarism related to 3 different authors

What is Academic Plagiarism and why is academic integrity relevant to professionalism in a business environment?

Please hive at least 3 definitions of Plagiarism related to 3 different authors. (Cite them and add at the final references list). Explain different types.

Critically assess why it is academic integrity relevant to professionalism in a business environment? What is academic integrity, professionalism and business environment. 

Please provide introduction, conclusion, in text citation and final references