Sajid, A., A. Bilal, S. Saeed, M. Hamza, and . Isham. “The Effect of Caffeinated Coffee on Tears Secretion Among Young Adults: Caffeinated Coffee and Tears Secretion”. Pakistan BioMedical Journal, vol. 8, no. 1, Jan. 2025, pp. 24-27, doi:10.54393/pbmj.v8i1.1126.