Zuniawati, Dewi, et al. “Analysis of Risk Factors That Influence the Lumbago Event in Hand-Rolled Clove Cigarette Workers at Margantara Jaya Cigarette Factories”. Journal for Quality in Public Health, vol. 4, no. 1, Nov. 2020, pp. 228-32, doi:10.30994/jqph.v4i1.156.