Usman, L.A. (2017) “Effect of Harvesting Time on Phytochemical Profile and Antioxidant Activity of Essential Oil from Citrus medica Leaves”, Al-Hikmah Journal of Pure and Applied Sciences (AJPAS), 5(1), pp. 42–51. Available at: https://alhikmahuniversity.edu.ng/AJPAS/index.php/journal/article/view/167 (Accessed: 4 July 2026).