Susalit, E., and R. P. Sidabutar. “Experience With the Once - Daily Calcium Antagonist Amlodipine on 24 - Hour Ambulatory Blood Pressure in Hypertensive Patients”. Medical Journal of Indonesia 3, no. 3 (July 1, 1994): 170-3. Accessed July 4, 2024. http://mji.ui.ac.id/journal/index.php/mji/article/view/966.