E. D. Purba, K. M, and H. P. Anjelisa, “Assessment of Drug Related Problems among Type 2 Diabetes Mellitus Patients with Hypertension in Doloksanggul Hospital, North Sumatera: A Retro prospective Study”, Asian J Pharm Res Dev, vol. 7, no. 6, pp. 46–50, Dec. 2019.