L. Septiana, I. B. Pakki, A. Azmiardi, R. Adrianto, I. K., and I. A. I. D. Lestari, “Analysis of Risk Factors for Pulmonary Function Disorders among Workers at PT X Coal Division, East Kalimantan”, IJGHR, vol. 7, no. 3, pp. 431-438, Jun. 2025.