Echeminada, P. (1998). Erap's supporting cast: Cerilles : DENR post is dream come true. Philippine Star.
Chicago-čujuhus (17. p.)Echeminada, Perseus. "Erap's Supporting Cast: Cerilles : DENR Post Is Dream Come True." Philippine Star 1998.
MLA-čujuhus (9. p.)Echeminada, Perseus. "Erap's Supporting Cast: Cerilles : DENR Post Is Dream Come True." Philippine Star, 1998.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.