Orawich Kongsuk. (1998) The effectiveness of protective clothing to reduce cold strain in canned food workers. Mahidol University,:ม.ป.ท.Orawich Kongsuk. 1998. The effectiveness of protective clothing to reduce cold strain in canned food workers. ม.ป.ท.:Mahidol University,;Orawich Kongsuk. The effectiveness of protective clothing to reduce cold strain in canned food workers. ม.ป.ท.:Mahidol University, 1998. Print.