美媒解读:新加坡警告奥巴马:做更多以抗衡中国

http://news.nanyangpost.com/2013/04/Christian-Science-Monitor-Singapore-warns-Obama-Do-more-to-counter-a-rising-China.html

李显龙的英文演讲稿在总理署网站

http://www.pmo.gov.sg/content/pmosite/mediacentre/speechesninterviews/primeminister/2013/April/speech_by_prime_ministerleehsienloongatgaladinnerhostedbyuschamb.html