Thongburan O. “An in Vitro Assessment of the Sealing Ability of Gutta Flow Vs AHplus”. Journal of The Department of Medical Services 43, no. 1 (February 1, 2018): 116–119. Accessed September 29, 2022. https://he02.tci-thaijo.org/index.php/JDMS/article/view/248325.