Gambaran keluhan subjektif pekerja akibat tekanan panas di area peleburan, proses sekunder, dan pengecoran Slab Steel Plant (SSP) PT. Krakatau Steel, Cilegon, Banten tahun 2012 = Description of workers subjective complaints due to heat stress in melting, secondary process, and casting area of Slab Steel Plant PT. Krakatau Steel Cilegon, Banten 2012