Pham และ Duc Muc. (2000) Incidence of sharp stick injury and its determinants among nurses at Ratchaburi regional hospital Thailand. Mahidol University,:ม.ป.ท.Pham และ Duc Muc. 2000. Incidence of sharp stick injury and its determinants among nurses at Ratchaburi regional hospital Thailand. ม.ป.ท.:Mahidol University,;Pham และ Duc Muc. Incidence of sharp stick injury and its determinants among nurses at Ratchaburi regional hospital Thailand. ม.ป.ท.:Mahidol University, 2000. Print.