List of Articles p-Sulphonato-calix [4] arene Open Access Article Abstract Page Full-Text 1 - Equilibrium Constants of the Complexation of Molybdate Ion with para-Sulfonatocalix [4] arene in aqueous media S. Z. Hashemizade Ali Farajtabar Open Access Article Abstract Page Full-Text 2 - Investigate formation constant of some Amino Acids by p-sulphonato-calix (4) arene in Aqueous Solution Noushin Osouleddini