Murtianingsih, A. A., & Suprayitno, E. (2019). The impact of lemon aromateraphy and breath relaxation in blood pressure on hypertensive elderly at Patukan Gamping Sleman Yogyakarta. International Journal of Health Science and Technology, 1(1), 9–15. https://doi.org/10.31101/ijhst.v1i1.1092