Determination of total flavonoid content of ethanolic extract of yellow mangosteen (Garcinia xanthochymus) by spectrometry Uv-Vis method and LCMS . JPS [Internet]. 2023 Jul. 12 [cited 2026 Oct. 21];6(3):935-50. Available from: https://journal-jps.com/new/index.php/jps/article/view/159