Mayangsari, N., N. Chasanah, A. Nurmalasari, V. Usviany, S. Alfah, M. C. Mainassy, and P. Sipahutar. “The Effect Of Black Tea Consumption On Teeth Coloring In The Community”. International Journal of Health Sciences, vol. 2, no. 2, May 2024, pp. 538-46, doi:10.59585/ijhs.v2i2.347.