Pertiwi, Shanti Asih, Bayu Wahyudi, and Yani Restiani Widjaja. “The Relationship Between Work Shifts and Changes in Vital Signs of Health Workers: A Quantitative Study in Amalia Medika Pelalawan Riau Hospital”. Journal of Economics and Social Sciences (JESS) 4, no. 2 (December 11, 2025): 1637–1652. Accessed February 28, 2026. https://journal.civiliza.org/index.php/jess/article/view/1172.