Sadongdong, M. A. (2020). Two cops succumb to COVID-19, marks first virus-related deaths in PNP. Manila Bulletin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSadongdong, Martin A. "Two Cops Succumb to COVID-19, Marks First Virus-related Deaths in PNP." Manila Bulletin 2020.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSadongdong, Martin A. "Two Cops Succumb to COVID-19, Marks First Virus-related Deaths in PNP." Manila Bulletin, 2020.
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