Yuliawati, Ratna, Risma Arum Lintar, Ainur Rachman, and Marjan Wahyuni. “Analysis of Factors Related to Lung Dysfunction Among Coal Mining Workers in Coal Processing Plant”. Journal of Public Health in Africa 10, no. s1 (October 30, 2019). Accessed October 1, 2023. https://publichealthinafrica.org/jphia/article/view/1195.