Ya’ti Ikhwani Nasution, Haidir Harianja. Pengaruh Disiplin Kerja dan Etika Kerja Terhadap Kinerja Pegawai PT. Pos Indonesia Kantor Cabang Padangsidimpuan. Wawasan [Internet]. 2023 Jan. 30 [cited 2024 Nov. 25];1(1):256-71. Available from: https://journal.unimar-amni.ac.id/index.php/Wawasan/article/view/1433