Abad, M. J. E. (1998). Determinants of demand for the river ferry service: The case of Pasig.
Lua i Stíl Chicago (17ú heag.)Abad, Maria Jasmin E. Determinants of Demand for the River Ferry Service: The Case of Pasig. 1998.
Lua MLA (9ú heag.)Abad, Maria Jasmin E. Determinants of Demand for the River Ferry Service: The Case of Pasig. 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.