Sukristiyonubowo, ., Nugroho, K. and Vadari, T. (2012) “Nutrient Removal by Rice Cultivated in Newly Opened Wetland Rice in Bulungan District, East Kalimantan”, JOURNAL OF TROPICAL SOILS, 17(2), pp. 115–120. doi: 10.5400/jts.2012.v17i2.115-120.