2023. 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. Journal of Pharmaceutical Negative Results. (Apr. 2023), 3539–3549. DOI:https://doi.org/10.47750/pnr.2023.14.03.439.