Roberto, D. N. Do we prioritize blue ocean marketing over red ocean marketing? Philippine Daily Inquirer.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRoberto, Dr. Ned. "Do We Prioritize Blue Ocean Marketing over Red Ocean Marketing?" Philippine Daily Inquirer .
एमएलए (9वां संस्करण) प्रशस्ति पत्रRoberto, Dr. Ned. "Do We Prioritize Blue Ocean Marketing over Red Ocean Marketing?" Philippine Daily Inquirer, .
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