Supawadee Kaewrahun. 1999. Uptake of heavy metals by plant from soils treated by sewage sludge. Department of Agrochemistry and Plant Nutrition, Czech University of Agriculture;
Supawadee Kaewrahun. (1999) Uptake of heavy metals by plant from soils treated by sewage sludge . Czech University of Agriculture/Praha.
Supawadee Kaewrahun. Uptake of heavy metals by plant from soils treated by sewage sludge. . Praha:Czech University of Agriculture, 1999.
Supawadee Kaewrahun. (1999) Uptake of heavy metals by plant from soils treated by sewage sludge . Czech University of Agriculture/Praha.