Sarian, Z. B. (2015). Ilocos Norte Report. IN From the editor [column]: Piddig poised to become coffee bowl. Agriculture.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSarian, Zac B. "Ilocos Norte Report. IN From the Editor [column]: Piddig Poised to Become Coffee Bowl." Agriculture 2015.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSarian, Zac B. "Ilocos Norte Report. IN From the Editor [column]: Piddig Poised to Become Coffee Bowl." Agriculture, 2015.
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