Maja Shishovska, Zorica Arsova-Sarafinovska and Shaban Memeti 2015. A Simple Method for Determination of Protodioscin in Tribulus Terrestris L. and Pharmaceuticals by High-Performance Liquid Chromatography Using Diode-Array Detection. Journal of Chemical Engineering Research Updates. 2, 1 (Apr. 2015), 12–21. DOI:https://doi.org/10.15377/2409-983X.2015.02.01.2.