Hostiadi, Michael, Mardijana, Alif, AND Nurtjahja, Edi. " The Relationship of Anxiety Levels with Frequency of Dispneu Exacerbation in Asthma Bronchial's Patients at SMF Pulmo, Soebandi General Hospital, Jember" Journal of Agromedicine and Medical Sciences [Online], Volume 1 Number 1 (5 June 2015)