Cendekiawan, Khrisna Agung, et al. “Antidiarrhoeal Potential of Secondary Metabolites in Betel Leaf (Piper betle): A Systematic Review With Radar Chart Analysis and AUC Evaluation”. MEDFARM: Jurnal Farmasi Dan Kesehatan, vol. 14, no. 2, Dec. 2025, pp. 527-39, doi:10.48191/medfarm.v14i2.594.