[1]
N. H. EL – HAMMAMY, A. I. KAWANA, M. F. AMIRA, and N. S. EL – SISY, “Electrical Conductivity and Ion Pair Formation of S-Acetylthiocholine Halides and Perchlorate in Ethanol - Water At 25 Oc”., ijpbs, vol. 1, no. 2, pp. 1–13, Jun. 2010.