Roberto, D. N. Do we prioritize blue ocean marketing over red ocean marketing? Philippine Daily Inquirer.
Chicago Style (17. basım) AtıfRoberto, Dr. Ned. "Do We Prioritize Blue Ocean Marketing over Red Ocean Marketing?" Philippine Daily Inquirer .
MLA (9th ed.) AtıfRoberto, Dr. Ned. "Do We Prioritize Blue Ocean Marketing over Red Ocean Marketing?" Philippine Daily Inquirer, .
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