D. V. . Setiana, Y. Nurchayati, and N. Setiari, “Effect of Ammonium Sulfate on Flower and Pod Development of Soybean [Glycine max (L.) Merr.]”, J. Ilmu. Pertan. Indones., vol. 31, no. 1, pp. 17–22, Oct. 2025, doi: 10.18343/jipi.31.1.17.