Fransina, Eirene, Jolantje Latupeirissa, and Quendeline Stefanus. “WAKTU KONTAK DAN PH OPTIMUM SISA BUANGAN BATU BATA TERAKTIVASI Di-(2-Ethylhexcyl) Phosphate Acid (D2EHPA,) SEBAGAI PENJERAP Pb 2+”. Molluca Journal of Chemistry Education (MJoCE) 8, no. 1 (January 11, 2018): 7-11. Accessed October 20, 2021. https://ojs3.unpatti.ac.id/index.php/mjoce/article/view/2208.