U.S. Department of Health and Human Services (HHS), Centers for Disease Control and Prevention (CDC), National Institute for Occupational Safety and Health (NIOSH),
NIOSH HETA No. 2006-0155-3072: 1-40
2008,
Kaya S, Celik MS, Akdag MZ, Adiguzel O, Yavuz I, Tumen EC, Ulku SZ, Ganidagli Ayaz S, Ketani A, Akpolat V, Akkus Z