There are several pieces of research (by krittaya. Adidas chawanit Hendrikson, d.SC., 2552; 2010 Jang Woo Lee, &,;, 1998; & Kushel, Vittinghoff, Haas, 2001; Guendelman, 1991) suggests that the people who come to work, migration or labour, these have the status of health and illness rate.
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