Riggs และผู้แต่งคนอื่นๆ. 2001. Trade as a factor of productivity growth in Thailand's agricultural sectorMichael B. Riggs. Field of Study International Economics and Finance, Chulalongkorn University;
Riggs และผู้แต่งคนอื่นๆ. (2001) Trade as a factor of productivity growth in Thailand's agricultural sectorMichael B. Riggs . Chulalongkorn University/Bangkok.
Riggs และผู้แต่งคนอื่นๆ. Trade as a factor of productivity growth in Thailand's agricultural sectorMichael B. Riggs. . Bangkok:Chulalongkorn University, 2001.
Riggs และผู้แต่งคนอื่นๆ. (2001) Trade as a factor of productivity growth in Thailand's agricultural sectorMichael B. Riggs . Chulalongkorn University/Bangkok.