by Pichit Pongsakul, Surasit Attajarusit (Department of Agriculture, Bangkok (Thailand). Soil Science Div.)
Published in Thai Journal of Soils and Fertilizers (01.04.1999)

by Prapit Sangtong(Department of Agriculture, Bangkok (Thailand). Soil Science Div.), Bhavana Likhananont(Department of Agriculture, Bangkok (Thailand). Soil Science Div.), Surasit Attajarusit(Department of Agriculture, Bangkok (Thailand). Soil Science Div.)
Published in Thai Journal of Soils and Fertilizers (Thailand) (01.10.2001)

by Chakrapong Chermsiri, Watanabe, H, Surasit Attajarusit (Department of Agriculture, Bangkok (Thailand). Soil Science Div.)
Published in ASST Newsletter (Thailand) (01.05.1994)

by Preeda Pakpian, Pichit Pongsakul, Prapit Sangtong, Surasit Attajarusit (Department of Agriculture, Bangkok (Thailand). Soil Science Div.)
Published in Thai Journal of Soils and Fertilizers (01.04.1994)

by Chakrapong Chermsiri(Department of Agriculture, Bangkok (Thailand). Soil Science Div.), Watanabe, H.(National Institute of Agro-Environmental Science (Japan)), Surasit Attajarusit(Department of Agriculture, Bangkok (Thailand). Soil Science Div.), Jarunan Tuntiwarawit
Published in Agricultural Science Journal (Thailand) (01.01.1995)