(VOVworld)- President Truong Tan Sang left Hanoi on Sunday to join economic leaders of the Asia-Pacific Economic Cooperation (APEC) forum at their 21st meeting in Bali , Indonesia this Monday and Tuesday. The President’s attendance at the meeting, which is at the invitation of Indonesian President Susilo Bambang Yudhoyono, will include bilateral sessions with member economies leaders to implement the Party guidelines on international integration. This will boost regional cooperation between Vietnam and APEC economies.