Butt, Jawaria, et al. “Bitter Coffee for Sweet Diabetes: A Randomized Controlled Trial For Treatment Of Type 2 Diabetes With Black Coffee In Balb C Albino Mice”. Pakistan Journal of Physiology, vol. 17, no. 1, Mar. 2021, pp. 15-18, https://pjp.pps.org.pk/index.php/PJP/article/view/1295.