Effects of Jamaican cherry (Muntingia calabura L.) Fruits Extract on Immunoglobulin G Levels and Hematological Profiles in Mice, Sujono, Tanti Azizah, Kusumowati Ika Trisharyan, and Munawaroh Rima , Pharmacognosy Journal, March 2021, Volume 13, Issue 2, p.535-541, (2021)