Hikmat Ramdhan, D., N. F. Ulfah Aisyah Indriani, and N. Puspita. “Effect of Heat Stress on Body Weight, Blood Pressure, and Urine Specific Gravity Among Underground Miners in PT X 2015”. KnE Life Sciences, Vol. 4, no. 4, May 2018, pp. 434–441, doi:10.18502/kls.v4i4.2304.