Rey, M. P. (2011). An overview of the carbon business. College of Business Administration, University of the Philippines.
Lua i Stíl Chicago (17ú heag.)Rey, Mia Pang. An Overview of the Carbon Business. Quezon City: College of Business Administration, University of the Philippines, 2011.
Lua MLA (9ú heag.)Rey, Mia Pang. An Overview of the Carbon Business. College of Business Administration, University of the Philippines, 2011.
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