Wahyusi KN, Nandini A, Utami LI, Siswanto, Utami I, Mardhiyah N, Nofita D. The Effect of Resin and NH4OH Addition in The Making of Ammonium Silica Fertilizer from Geothermal Sludge. ijeise [Internet]. 2024May14 [cited 2024Sep.19];2(1). Available from: https://ijeise.upnjatim.ac.id/index.php/ijeise/article/view/29