ANSARY, A. L.;BADAWY, S.S.;ABDEL RAHMAN, A.I.;SHAFIK, L.M.2019-04-222019-04-221303-6017http://hdl.handle.net/20.500.12575/61807https://doi.org/10.1501/Commub_0000000264Spectrophotometrıc Studies on the Fe (III) ,Co (II), Ni(II) and Cu(II) Chelates with 2 (1-Hydroxy-3- Sulpho -7- Napthylazo) - Chromotropic Acid295300