Silaban, Hertina, Anastasia Novena Brigita Weubun, and Welly Salutondok. “An Overview of Public Knowledge and Attitudes towards the Use of Herbs During the Covid-19 Pandemic”. Journal of Drug Delivery and Therapeutics 12, no. 4-S (August 25, 2022): 147–153. Accessed January 21, 2026. https://jddtonline.info/index.php/jddt/article/view/5574.