Ningsih, A. “Walking Exercise As an Alternative Choice in Lowering Blood Pressure in Hypertensive Patients: Systematic Review”. INTERNATIONAL JOURNAL OF NURSING AND MIDWIFERY SCIENCE (IJNMS), Vol. 4, no. 3, Dec. 2020, pp. 260-76, doi:10.29082/IJNMS/2020/Vol4/Iss3/294.