Fahmi, A., A. Susilawati, and A. Rachman. “Influence of Height Waterlogging on Soil Physical Properties of Potential and Actual Acid Sulphate Soils”. JOURNAL OF TROPICAL SOILS, vol. 19, no. 2, Apr. 2015, pp. 67-73, doi:10.5400/jts.2014.v19i2.67-73.