Pyakurel และ Ram Sharan. (1997) Factors influencing the utilization of safety measures among workers of the Spinning Department of Indo-Thai Synthetics Company, Bangpain district, Ayuthaya province, Thailand. Mahidol University,:ม.ป.ท.Pyakurel และ Ram Sharan. 1997. Factors influencing the utilization of safety measures among workers of the Spinning Department of Indo-Thai Synthetics Company, Bangpain district, Ayuthaya province, Thailand. ม.ป.ท.:Mahidol University,;Pyakurel และ Ram Sharan. Factors influencing the utilization of safety measures among workers of the Spinning Department of Indo-Thai Synthetics Company, Bangpain district, Ayuthaya province, Thailand. ม.ป.ท.:Mahidol University, 1997. Print.