T. S. Wardania, V. M. Rohmana, B. A. Dewi, and S. Erikania, “Formulation of Gold (Au) Nanoparticles Serum Containing Sunflower (Helianthus annuus L.) seed extract from Indonesia as an antibacterial: in vitro and skin irritation assessments”, Iran J Pharm Sci, vol. 22, no. 1, pp. 404–417, Oct. 2026.