İslam, Mahmud, et al. “The Effect of Hot Pepper, Sumac, and Chewing on Gastric Inhibitory Peptide, Glucagon-Like Peptide, and Cholecystokinin Hormone Secretion: GIS Effects of Pepper and Sumac”. Journal of European Internal Medicine Professionals, vol. 1, no. 4, Oct. 2023, pp. 112-21, doi:10.5281/zenodo.10019780.