%0 Journal Article %A %D 2021 %J Humanities and Social Sciences Letters %@ 2312-4318 %V 9 %N 4 %P 326-340 %T A Performance Model of the Indonesian National Police: The Role of Communication Apprehension, Servant Leadership, Group Cohesiveness, and Silence Behavior %M 10.18488/journal.73.2021.94.326.340 %U http://www.pakinsight.com/archive/73/12-2021/4