Ilano, A. M. (2006). The Philippine telecom industry: Implementing number portability for landline and cellular phones in the Philippines.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रIlano, Arturo M. The Philippine Telecom Industry: Implementing Number Portability for Landline and Cellular Phones in the Philippines. Quezon City College of Business Administration, University of the Philippines, 2006.
एमएलए (9वां संस्करण) प्रशस्ति पत्रIlano, Arturo M. The Philippine Telecom Industry: Implementing Number Portability for Landline and Cellular Phones in the Philippines. 2006.
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