Ketkhao, Piyamas, Somchai Anusontpornperm, Suphicha Thanachit, Irb Kheoruenromne, and Mutchima Phun-iam. 2024. “Effect of bentonite and cassava tails and stalk on cassava planted in an upland Grossarenic Grossarenic Paleustult and soil property changes”. Agriculture and Natural Resources 58 (1). Bangkok, Thailand:67-80. https://li01.tci-thaijo.org/index.php/anres/article/view/262547.