Lestari, K. S., A. F. Muhamad, A. Susanto, E. K. Putro, J. C. Wilmot, Y. M. Savira, A. Listiarini, D. Zulfakar, and S. D. A. M. Sunarno. “Psychosocial Risk Factors on Mining Workers Processing Copper and Gold Minerals During Covid-19 Pandemic”. The Indonesian Journal of Occupational Safety and Health, vol. 10, no. 3, Nov. 2021, pp. 309-15, doi:10.20473/ijosh.v10i3.2021.309-315.