Hemthanon, T., and P. Ungcharoenwiwat. “Antibacterial Activity, Stability, and Hemolytic Activity of Heartwood Extract from Caesalpinia Sappan for Application on Nonwoven Fabric”. Electronic Journal of Biotechnology, vol. 55, Jan. 2022, https://preprints.pucv.cl/index.php/ejbiotechnology/article/view/2021.10.002.