Fidrianny, I., U. Rukoyah, and K. R. W. “METHOD DEVELOPMENT FOR SIMULTANEOUS ANALYSIS OF MARKER SCOPOLETINE, ANDROGRAPHOLIDE, QUERCETIN, AND LUTEOLIN IN ANTIHYPERTENSION JAMU FORMULATION USING RP-HPLC”. International Journal of Pharmacy and Pharmaceutical Sciences, vol. 7, no. 3, Mar. 2015, pp. 332-6, https://journals.innovareacademics.in/index.php/ijpps/article/view/4447.