Astri Deshiely Siregar Departement of Industrial & Organizational Psychology,
Faculty of Pschology University of Sumatera Utara
North Sumatera, Indonesia Indonesia
Raras Sutatminingsih Departement of Industrial & Organizational Psychology,
Faculty of Pschology University of Sumatera Utara
North Sumatera, Indonesia
Ferry Novliadi Departement of Industrial & Organizational Psychology,
Faculty of Pschology University of Sumatera Utara
North Sumatera, Indonesia