Supachart Wannawong. 1989. Benefit-cost analysis of selected agroforestry and monocropping systems in Northeastern Thailand [Phu Wiang Watershed, Khon Kaen Province]. Field of Study Forest Resources, University of Idaho;
Supachart Wannawong. (1989) Benefit-cost analysis of selected agroforestry and monocropping systems in Northeastern Thailand [Phu Wiang Watershed, Khon Kaen Province] . University of Idaho/Moscow.
Supachart Wannawong. Benefit-cost analysis of selected agroforestry and monocropping systems in Northeastern Thailand [Phu Wiang Watershed, Khon Kaen Province]. . Moscow:University of Idaho, 1989.
Supachart Wannawong. (1989) Benefit-cost analysis of selected agroforestry and monocropping systems in Northeastern Thailand [Phu Wiang Watershed, Khon Kaen Province] . University of Idaho/Moscow.