Suphim, B., B. Buranrat, A. Prawan, and V. Kukongviriyapan. “Sensitivity of Cholangiocarcinoma Cells to Chemotherapeutic Agents and Curcumin”. Srinagarind Medical Journal, vol. 23, no. 3, Nov. 2013, pp. 284-9, https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/13084.