Oktaviani, Alvina, 		Nuriya, Nuriya, AND 		Upoyo, Arif.
" CASE STUDY: THE EFFECT OF BUTEKYO BREATHING TECHNIQUE ON PEAK EKSPIRATORY FLOW (PEF) AND OXYGEN SATURATION IN ASTHMA PATIENTS" <em>International Journal of Biomedical Nursing Review</em> [Online], Volume 3 Number 2 (27 August 2024)