A. Gashawa and T. Getachew, “The Chemistry of Khat and Adverse Effect of Khat Chewing”, ASRJETS-Journal, vol. 9, no. 1, pp. 35–46, Jul. 2014, Accessed: Sep. 12, 2025. [Online]. Available: https://asrjetsjournal.org/American_Scientific_Journal/article/view/633