(1998). SPI Technology is 1997 best performing stock. Manila Times.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र"SPI Technology Is 1997 Best Performing Stock." Manila Times 1998.
एमएलए (9वां संस्करण) प्रशस्ति पत्र"SPI Technology Is 1997 Best Performing Stock." Manila Times, 1998.
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