Pratama, A. 2017. Pengaruh Ambiguitas Peran, Otonomi Kerja dan Locus of Control Terhadap Kinerja Personel Polres Kudus: The Influence of Role Ambiguity, Work Autonomy and Locus of Control on the Performance of Kudus Police Personnel. Indonesian Journal of Police Studies. 7, 11 (Jan. 2017), 145-206.