BURANRAT, B. “In Vitro Evaluation of the Antiproliferative Activity of Piper Retrofractum on Human Cholangiocarcinoma Cells”. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, vol. 51, no. 4, Nov. 2023, p. 12939, doi:10.15835/nbha51412939.