Chavez, C. A. Upcycling of waste materials into Christmas decors urged. Manila Bulletin.
Lua i Stíl Chicago (17ú heag.)Chavez, Chito A. "Upcycling of Waste Materials into Christmas Decors Urged." Manila Bulletin .
Lua MLA (9ú heag.)Chavez, Chito A. "Upcycling of Waste Materials into Christmas Decors Urged." Manila Bulletin, .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.