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2017. Peran Unit Dikyasa Satuan Lalu Lintas Polres Purworejo dalam Menekan Angka Kecelakaan Lalu Lintas: The Role of Dikyasa Traffic Unit Police of Purworejo Regional Police in Suppressing Traffic Accident Rates.
Advances in Police Science Research Journal. 1, 1 (Jan. 2017), 195–244. DOI:
https://doi.org/10.70526/apsrj.v1i1.22.