“The Influence of Phosphate Fertilizer and Plant Growth Regulators on the Growth and Yield of Ratoon Rice (Oryza sativa L.) Grown on Swampland”, j Trop. Soils, vol. 23, no. 2, pp. 73–80, Feb. 2019, doi: 10.5400/jts.2018.v23i2.73-80.