Castillo, R. (2003). Sex for heart patients. Philippine Daily Inquirer.
Lua i Stíl Chicago (17ú heag.)Castillo, Rafael. "Sex for Heart Patients." Philippine Daily Inquirer 2003.
Lua MLA (9ú heag.)Castillo, Rafael. "Sex for Heart Patients." Philippine Daily Inquirer, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.