Perdanatika, Aditya, et al. “The Effects of Rice Husk Ash and Dolomite on Soybean Yield at Latosol Soil”. SAINS TANAH - Journal of Soil Science and Agroclimatology, vol. 15, no. 1, July 2018, pp. 29-34, https://doi.org/10.15608/stjssa.v15i1.21620.