Chanco, B. (2001). Telecoms clearning house not needed. IN Demand and supply [column]. Philippine Star.
Dyfyniad Arddull ChicagoChanco, Boo. "Telecoms Clearning House Not Needed. IN Demand and Supply [column]." Philippine Star 2001.
Dyfyniad MLAChanco, Boo. "Telecoms Clearning House Not Needed. IN Demand and Supply [column]." Philippine Star, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.