عـــائـــشــة ر. and مـحـمـد رأفــت مـعـروف 2022. Chemical Analytical Study for Determination of Manganese (II) Using Organic Reagent (HPHMAB) in Aqueous Solution by using Spectrophotometric Method. Tishreen University Journal -Basic Sciences Series. 44, 4 (Sep. 2022), 133–150.