Olvena, M. V. R. (2004). Cityhood conversion and its fiscal impact on the mother province: The case of Tarlac City and Tarlac province.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOlvena, Maria Virginia R. Cityhood Conversion and Its Fiscal Impact on the Mother Province: The Case of Tarlac City and Tarlac Province. 2004.
एमएलए (9वां संस्करण) प्रशस्ति पत्रOlvena, Maria Virginia R. Cityhood Conversion and Its Fiscal Impact on the Mother Province: The Case of Tarlac City and Tarlac Province. 2004.
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