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Continue to ChatANALYSIS OF NOISE SOURCES AND SELECTION OF EAR PROTECTOR IN A COAL MINE - https://avesis.cu.edu.tr/publication/details/832ec08e-a52f-47af-a5a4-fce9f9e96983/analysis-of-noise-sources-and-selection-of-ear-protector-in-a-coal-mine