©2013 National Research Council of Thailand
Patma Vityakon. 2002. Nitrogen and phosphorus availability as influenced by litter of various agroforestry trees of northeast Thailand : relationship to litter quality. Khon Kaen:Department of Land Resources and Environment Khon Kaen University;
Patma Vityakon. (2002) Nitrogen and phosphorus availability as influenced by litter of various agroforestry trees of northeast Thailand : relationship to litter quality. Department of Land Resources and Environment Khon Kaen University:Khon Kaen.
Patma Vityakon. Nitrogen and phosphorus availability as influenced by litter of various agroforestry trees of northeast Thailand : relationship to litter quality. Khon Kaen:Department of Land Resources and Environment Khon Kaen University, 2002. Print.
Patma Vityakon. (2002) Nitrogen and phosphorus availability as influenced by litter of various agroforestry trees of northeast Thailand : relationship to litter quality. Department of Land Resources and Environment Khon Kaen University:Khon Kaen.