SuwarnoS., GotoI. and MasujimaH. 2001. Comparison of Chemical Properties and Application as Acid Soil Amendment of Pretreatment Center Slag and Other Slags. Jurnal Ilmu Tanah dan Lingkungan. 2, 2 (Oct. 2001), 8-17. DOI:https://doi.org/10.29244/jitl.2.2.8-17.