Calica, M. A. L. (2001). Lacson backs out of Senate face-off / Ma. Aurea L. Calica Marichu Villanueva, Sheila Crisostomo [et al.]. Philippine Star.
Lua i Stíl Chicago (17ú heag.)Calica, Ma. Aurea L. "Lacson Backs Out of Senate Face-off / Ma. Aurea L. Calica Marichu Villanueva, Sheila Crisostomo [et Al.]." Philippine Star 2001.
Lua MLA (9ú heag.)Calica, Ma. Aurea L. "Lacson Backs Out of Senate Face-off / Ma. Aurea L. Calica Marichu Villanueva, Sheila Crisostomo [et Al.]." Philippine Star, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.