Perena, G. (1999). The best BSP chief the country ever had. Kabayan.
Lua i Stíl Chicago (17ú heag.)Perena, Gina. "The Best BSP Chief the Country Ever Had." Kabayan 1999.
Lua MLA (9ú heag.)Perena, Gina. "The Best BSP Chief the Country Ever Had." Kabayan, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.