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Pyakurel และผู้แต่งคนอื่นๆ. 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;
Pyakurel และผู้แต่งคนอื่นๆ. (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/Bangkok.
Pyakurel และผู้แต่งคนอื่นๆ. Factors influencing the utilization of safety measures among workers of the Spinning Department of Indo-Thai Synthetics Company, Bangpain district, Ayuthaya province, Thailand. . Bangkok:Mahidol University, 1997.
Pyakurel และผู้แต่งคนอื่นๆ. (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/Bangkok.