Roxas, N. R. J., & Fillone, A. M. Income effect in inter-island passenger mode choice for the Western Visayas Region, Philippines. Philippine Engineering Journal.
Čikaški stil citiranja (17. izdanje)Roxas, Nicanor R. Jr, i Alexis M. Fillone. "Income Effect in Inter-island Passenger Mode Choice for the Western Visayas Region, Philippines." Philippine Engineering Journal .
MLA način citiranja (9. izdanje)Roxas, Nicanor R. Jr, i Alexis M. Fillone. "Income Effect in Inter-island Passenger Mode Choice for the Western Visayas Region, Philippines." Philippine Engineering Journal, .
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