Hemthanon, Tharathip, and Pakpimol Ungcharoenwiwat. 2022. “Antibacterial Activity, Stability, and Hemolytic Activity of Heartwood Extract from Caesalpinia Sappan for Application on Nonwoven Fabric”. Electronic Journal of Biotechnology 55 (January). Valparaíso, Chile. https://preprints.pucv.cl/index.php/ejbiotechnology/article/view/2021.10.002.