#Terrestrial soils
Siwatt Pongpiachan* School of Social and Environmental Development, National Institute of Development Administration (NIDA)
Siwatt Pongpiachan* School of Social and Environmental Development, National Institute of Development Administration (NIDA); TM. Hattayanone; O. Pinyakong; V. Viyakarn; S.A. Chavanich; C. Bo; C. Khumsup, I. Kittikoon, P. Hirunyatrakul
