Somchai Anusontpornperm, Stephen Nortcliff and Irb Kheoruenromne (2009) “Interpretability Comparison between Soil Taxonomic and Fertility Capability Classification Units: A Case of Some Major Cassava Soils in Northeast Thailand”, Agriculture and Natural Resources. Bangkok, Thailand, 43(5), pp. 9–18. available at: https://li01.tci-thaijo.org/index.php/anres/article/view/244773 (accessed: 14 September 2026).