Duterte plays a winning hand with foreign policy, but will his luck run out? - The Washington Post
Duterte Abandons China as Philippines Realign With United States
For the Motherland - Sass Rogando Sasot - MY TOP 10 POLITICAL MOMENTS IN THE MOTHERLAND 2016 #1 Duterte's Foreign Policy Doctrine: Pivot to the Rest of the World - diversification, delimitation,
PDF) Understanding President Duterte's 'Independent Foreign Policy'