Cordova, C. (2021). Gwen requires Cebu workers to wear personal air purifiers. Manila Bulletin.
Chicago-viite (17. p.)Cordova, Calvin. "Gwen Requires Cebu Workers to Wear Personal Air Purifiers." Manila Bulletin 2021.
MLA-viite (9. p.)Cordova, Calvin. "Gwen Requires Cebu Workers to Wear Personal Air Purifiers." Manila Bulletin, 2021.
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