Synthesis of Poly- Tetra-p-Allylcalix[4]Arene Tetra Acetic Acid Adsorbent for Cr(III) and Pb(II) Metal Ions - Kusumaningsih, Triana; Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Sebelas Maret, Surakarta 57126, Indonesia (Universitas Indonesia, 2012)