Pagsanjan-Estrera, I. (2003). UP chacha opposition exposes new privatization trends. Philippine Collegian.
Lua i Stíl Chicago (17ú heag.)Pagsanjan-Estrera, Iris. "UP Chacha Opposition Exposes New Privatization Trends." Philippine Collegian 2003.
Lua MLA (9ú heag.)Pagsanjan-Estrera, Iris. "UP Chacha Opposition Exposes New Privatization Trends." Philippine Collegian, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.