Afsyari T, Tridayanti H. Analysis of the Discipline Factors of Employees at the Sony Sugema College Surabaya Tutoring Institute. ijieeb [nternet]. 2018Mar.31 [cited 2024Nov.22];1(1):41-2. vailable from: https://jurnal.narotama.ac.id/index.php/ijieeb/article/view/793