saya mau rikues jurnal ini gan Mineralogy and trace element association in an acid mine drainage iron oxide precipitate; comparison of selective extractions Applied Geochemistry Volume 13, Issue 2, March 1998, Pages 165–176 Douglas K. McCarty http://www.sciencedirect.com/science/article/pii/S0883
wah ternyata ada yang beginian yah, ogut rikues dong Fouling models for low-pressure membrane systems Jeonghwan Kim Separation and Purification Technology volume 68, Issue 3, 25 August 2009, Pages 293–304 http://www.sciencedirect.com/science/article/pii/S1383586609002214 makasih sebelumnya
