Alemayehu, Tassew, and Assefa Sergawie. 2013. “Determination of Chloramphenicol in Pharmaceutical Samples at Electrochemically Pretreated Glassy Carbon Electrode”. American Scientific Research Journal for Engineering, Technology, and Sciences 6 (1):1-11. https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/489.