Redi, Mesfin (PhD)Mehari, Bewketu2018-06-162023-11-092018-06-162023-11-092007-08http://etd.aau.edu.et/handle/12345678/1037en1;4-Benzoquinone Modified Carbon Paste ElectrodeFurther Improvement of the Voltammetric Method of Determination of Caffeine by Using 1,4-Benzoquinone Modified Carbon Paste ElectrodeThesis