Kurniawan, Dimas, susi milwati, & naya ernawati. " THE EFFECT OF PURSED LIP BREATHING ON OXYGEN SATURATION OF POST GENERAL ANESTHESIA PATIENT AT SURGICAL WARD LAVALETTE HOSPITAL." Journal of Applied Nursing (Jurnal Keperawatan Terapan) [Online], 8.1 (2022): 11-18. Web. 28 Nov. 2022