Munirah, M.; Ahmad, S.; Ghazali, H.; Mahmud, T.; Ketaren, B.; Shukor, N.; Tajidin, N. PLANT VEGETATIVE STAGES AND DRYING METHODS AFFECT THE FLAVONOID CONTENT OF CLINACANTHUS NUTANS EXTRACTS. Afr J Tradit Complement Altern Med 2018, 15, 54-63.