Krutkun T. Effects of Lead Nitrate and Lead Oxide Added into Map Bon Sandy Loam Soil on Growth of Cassava. Agr. Nat. Resour. [internet]. 1984 Sep. 1 [cited 2026 Sep. 18];18(3):149-52. available from: https://li01.tci-thaijo.org/index.php/anres/article/view/240972