Rozi Mexiwel et al. 2026. Evaluation of Additional Emergency Brake Button Installation to Reduce Risk Priority Number (RPN) for Main Emergency Brake Failure in a 350 HP Drawworks Rig. KESANS : International Journal of Health and Science. 5, 10 (Jul. 2026), 1892–1906. DOI:https://doi.org/10.54543/kesans.v5i10.680.