“Penentuan Kadar Flavonoid Total Ekstrak Etanol Daun Biduri (Calotropis gigantea L)” (2022) Jurnal KANAKA, 1(1), hlm. 1–4. Tersedia pada: https://jurnal.abulyatama.ac.id/index.php/Kanaka/article/view/2707 (Diakses: 17 Oktober 2026).