T. Suswanto, S. Jusop, S. S. Omar, C. The, and P. Mat, “A Decision Support System for Rice Cultivation on Acid Sulfate Soils in Malaysia”, J. Il. Tan. Lingk., vol. 7, no. 1, pp. 1–5, Apr. 2005, doi: 10.29244/jitl.7.1.1-5.