Chourdhury, P. A. (1999). Basic services designed to promote self-reliance. Philippine Star.
Lua i Stíl Chicago (17ú heag.)Chourdhury, Perla Aragon. "Basic Services Designed to Promote Self-reliance." Philippine Star 1999.
Lua MLA (9ú heag.)Chourdhury, Perla Aragon. "Basic Services Designed to Promote Self-reliance." Philippine Star, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.