Deocadiz, E. V., & Villacrusis, L. d. D. Telephone metering: A study on the telephone pricing systems in the Philippines.
Čikaški stil citiranja (17. izdanje)Deocadiz, Edgar Villar, i Leo de Dios Villacrusis. Telephone Metering: A Study on the Telephone Pricing Systems in the Philippines.
MLA način citiranja (9. izdanje)Deocadiz, Edgar Villar, i Leo de Dios Villacrusis. Telephone Metering: A Study on the Telephone Pricing Systems in the Philippines.
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