User talk:Chuluojun

Do u mind explaining why did u add Introduction to Matrix Theory: With Applications to Business and Economics to the Operations Management article? It seems to barely scratch the themes covered in the articleLbertolotti (talk) 20:16, 8 March 2014 (UTC)

World Scientific Publishing
Are you, perhaps, a representative of the company. Almost all of your edits have been to add textbooks from that company to articles about only marginally related subjects. — Arthur Rubin (talk) 10:04, 26 February 2015 (UTC)