©2013 National Research Council of Thailand
Kallaya Harnpicharnchai. 2006. A study of factors affecting the pulmonary function impairment of rice mill workers. Field of Study Industrial Hygiene and Safety, Mahidol University;
Kallaya Harnpicharnchai. (2006) A study of factors affecting the pulmonary function impairment of rice mill workers . Mahidol University/Bangkok.
Kallaya Harnpicharnchai. A study of factors affecting the pulmonary function impairment of rice mill workers. . Bangkok:Mahidol University, 2006.
Kallaya Harnpicharnchai. (2006) A study of factors affecting the pulmonary function impairment of rice mill workers . Mahidol University/Bangkok.