E. Erwin, I. Febrianti, S. P. Pasaribu, and A. Aziz, “Penentuan Total Flavonoid Content (TFC) dan Aktivitas Antioksidan Tumbuhan Insulin (Smallanthus sonchifolius): Determination of Total Flavonoid Content (TFC) and Antioxidant Activity of Insulin Plants (Smallanthus sonchifolius)”, J. Sains Kes., vol. 6, no. 4, pp. 570–575, Aug. 2024.