Santos, R. (2020). 4 countries require COVID-19 test for Philippine travelers. Philippine Star.
Chicagoスタイル(17版)引用形式Santos, Rudy. "4 Countries Require COVID-19 Test for Philippine Travelers." Philippine Star 2020.
MLA(9版)引用形式Santos, Rudy. "4 Countries Require COVID-19 Test for Philippine Travelers." Philippine Star, 2020.
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