Nguyen, L., Q. Nguyen, T. Doan, L. Le, H. Tran, P. Le, P. Dang, and H. Nguyen. “Study on the Antioxidant Cosmetic Preparation from Spirulinaplatensis and Gold Nanoparticles”. Science and Technology Development Journal, Vol. 18, no. 2, June 2015, pp. 36-45, doi:https://doi.org/10.32508/stdj.v18i2.1141.