Usman, Usman, et al. “Aktivitas Antioxidan Ekstrak Metanol Bunga Gmelina Elliptica Dari Kalimantan Timur”. Bivalen: Chemical Studies Journal, vol. 5, no. 2, June 2025, pp. 57-60, https://jurnal.fkip.unmul.ac.id/index.php/bivalen/article/view/2544.