Duque, M. Q. S. (2002). Journey of 2 presidents. IN Seasons [column]. Manila Bulletin.
Lua i Stíl Chicago (17ú heag.)Duque, Mita Q. Sison. "Journey of 2 Presidents. IN Seasons [column]." Manila Bulletin 2002.
Lua MLA (9ú heag.)Duque, Mita Q. Sison. "Journey of 2 Presidents. IN Seasons [column]." Manila Bulletin, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.