Stability Constant of Some Metal Ion Complexes of (6-(2Amino-2-(4-Hydroxy Phenyl)-Acetamido)-3,3--Dimethyl-7oxo-4-Thia-1-Aza-bicyclo[3,2,0]heptanes-2carboxylicacid(Amoxicillin). IHJPAS 2017, 26 (3), 245-253.