Handayani, Widya, Fitria Saftarina, and Risal Wintoko. 2014. “The Corelation of Anxiety Levels With Shift Work Inpatient Installasion Nurses Working in Shift and Non-Shift in Dr. H. Abdul Moeloek Public Hospital in Bandar Lampung”. Majority 3 (6). http://juke.kedokteran.unila.ac.id/index.php/majority/article/view/299.