Sawaeng Ruaysoongnern. 1998. Nutrient cycling of leguminous tree species through litter fall I. Nitrogen fixation of leguminous tree species in the Northeast of Thailand. Khon Kaen:Faculty of Agriculture Khon Kaen University;
Sawaeng Ruaysoongnern. (1998) Nutrient cycling of leguminous tree species through litter fall I. Nitrogen fixation of leguminous tree species in the Northeast of Thailand. Faculty of Agriculture Khon Kaen University:Khon Kaen.
Sawaeng Ruaysoongnern. Nutrient cycling of leguminous tree species through litter fall I. Nitrogen fixation of leguminous tree species in the Northeast of Thailand. Khon Kaen:Faculty of Agriculture Khon Kaen University, 1998. Print.
Sawaeng Ruaysoongnern. (1998) Nutrient cycling of leguminous tree species through litter fall I. Nitrogen fixation of leguminous tree species in the Northeast of Thailand. Faculty of Agriculture Khon Kaen University:Khon Kaen.