Belena, A. P. (2001). Export sector confronts sales slowdown. Philippine Graphic.
Lua i Stíl Chicago (17ú heag.)Belena, Abe P. "Export Sector Confronts Sales Slowdown." Philippine Graphic 2001.
Lua MLA (9ú heag.)Belena, Abe P. "Export Sector Confronts Sales Slowdown." Philippine Graphic, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.