Pengchum, Sasiwan, Pattama Chailertvanitkul, Malinee Laopaiboon, PV Abbott, and Suttichat Krisanaprakornkit. “Thai Propolis Extract As a Root Canal Medication Against Enterococcus Faecalis Infection”. Khon Kaen University Dental Journal 21, no. 1 (June 28, 2018): 30–38. Accessed April 28, 2024. https://he01.tci-thaijo.org/index.php/KDJ/article/view/131318.