តាក់តែងម ើងមោយ ាស្រ្ាា Nរ្យតែនាំResearch Agreement • August 13th, 2018
តាក់ខែងមឡើងមោយ សាស្ត្សាថ NរយខែនាំResearch and Development • August 5th, 2018
OPEC : Organization of Petroleum Exporting Countries NAFTA : North American Free Trade Agreement ASEAN : Association of Southeast Asian Nations