Pengaruh Progressive Muscle Relaxation terhadap Aliran Puncak Ekspirasi Klien dengan Asma Bronkial di Poli Spesialis Paru B Rumah Sakit Paru Kabupaten Jember (The Effect of Progressive Muscle Relaxation on Peak Expiratory Flow of Clients with Bronchial As - Novarin, Christina (UPT Penerbitan Universitas Jember, 2015)