Lucas, D. (2006). Cell phone penetration rate seen to peak at 50%. Philippine Daily Inquirer.
Dyfyniad Arddull ChicagoLucas, Daxim. "Cell Phone Penetration Rate Seen to Peak at 50%." Philippine Daily Inquirer 2006.
Dyfyniad MLALucas, Daxim. "Cell Phone Penetration Rate Seen to Peak at 50%." Philippine Daily Inquirer, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.