Ahmad A, Alnazar Z. The Effect Of Work Shift On Subjective Fatigue At PT. Sumber Setia Budi Kolaka Sultra Workers. JISEM [Internet]. 2022 Mar. 25 [cited 2025 Nov. 5];1(1):36-40. Available from: https://journal-jisem.com/index.php/jisem/article/view/6