Polyauk, Olgya, and Liliya Logoyda. “THE INVESTIGATION OF CONDITIONS OF API FROM GROUP OF CALCIUM CHANNEL BLOCKERS EXTRACTION BY ORGANIC SOLVENTS BY USING HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY AS ASSAY METHOD”. Asian Journal of Pharmaceutical and Clinical Research 10, no. 10 (September 1, 2017): 354-356. Accessed February 28, 2020. https://innovareacademics.in/journals/index.php/ajpcr/article/view/20506.