Bunman, S., P. Chinjarernpan, S. Stitsmith, A. Jabsuwan, and S. Kim. “Evaluation of the Antioxidant Activity, Collagen Synthesis and Stability of Bright and Firm Hybrid Emulsion I”. The Bangkok Medical Journal, vol. 15, no. 2, Sept. 2019, p. 168, doi:10.31524/bkkmedj.2019.09.008.