Saya mau tau Rujukan dari Óscar Arias. Jelaskan dalam bahasa melayu

Ubben Lecture at DePauw University; 8 December 2010 (includes audio/video)

English translation of the "Algo hicimos mal" speech

U.S.: Arias Government Knew How The Constitutional Court Would Vote On The TLC/WikiLeaks On Costa Rica: Translated From La Nación

Accomplishments of Oscar Arias Sanchez

Biography by CIDOB (in Spanish)