Sjughiarto, M. A., M. S. Rohman, Y. G. Retno A, L. K. Sari, L. Haryati, D. K. Rahayu, F. Y. Aksari, and D. Amelia. “Bisoprolol Reduced Left Ventricular Hypertrophy in Hypertensive Patients With Gln27Gln (wildtype) ?2-Adrenergic Receptor Receiving Angiotensin II Receptor Blocker (ARB)”. International Journal of Sciences: Basic and Applied Research (IJSBAR), vol. 34, no. 3, July 2017, pp. 31-41, https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/7672.