Effect Of Mangosteen Peel Extract On Increasing The Number Of Endocrine Cells In Pancreas Langerhans Islands And Decreasing Tumor Necrosis Factor Alfa In Streptozotocin-Induced Male Rats. (2023). Journal of Pharmaceutical Negative Results, 3539-3549. https://doi.org/10.47750/pnr.2023.14.03.439