Cumayunaro, A. “RELAXATION BREATHING EXERCISE TERHADAP FATIGUE PADA PASIEN KANKER PAYUDARA YANG MENJALANI KEMOTERAPI”. UNES Journal of Scientech Research, Vol. 3, no. 1, June 2018, pp. 081-7, https://ojs.ekasakti.org/index.php/UJSR/article/view/276.