University of the Philippines Institute For Small-Scale Industries. [Industry profile: Sotanghon].
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUniversity of the Philippines Institute For Small-Scale Industries. [Industry Profile: Sotanghon]. UP ISSI.
एमएलए (9वां संस्करण) प्रशस्ति पत्रUniversity of the Philippines Institute For Small-Scale Industries. [Industry Profile: Sotanghon].
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