Mittal, A., P. Kumar, S. Singh, W. Ali, S. K. Singh, and P. K. Chauhan. “Effect of Black Coffee and Green Tea on Plasma C-Peptide Level in Apparently Healthy Adults”. International Journal of Research in Medical Sciences, vol. 12, no. 11, Oct. 2024, pp. 4122-8, doi:10.18203/2320-6012.ijrms20243359.