Indonesian Journal of Occupational Safety and Health (IJOSH) is an international peer reviewed journal which is devoted to enhance the knowledge and practice of occupational health, safety and health by widely disseminating research articles and applied studies of highest quality. It provides occupational health physicians, ergonomist, nurses, occupational hygiene, health and safety professionals with a dependable single source of proficiently written legal, practical and management occupational health information. IJOSH welcomes original research submissions which relate to the full range of improving the evidence-based practice of occupational safety and health, occupational medicine and research on the development and application of novel methods, including biological and statistical techniques. Research aimed at biological and psychosocial hazards, chemical, ergonomic, physical in the workplace and to environmental contaminants and their health effects and the safety standards and interventions are also of interest. In addition, we publish editorials and peer-reviewed articles, including regular papers, review papers, commentaries, short reports, announcements and letters to the editor which provide a forum for debate. The journal is a collaborative venture between Universitas Gadjah Mada (UGM) and Institute of Advanced Engineering and Science (IAES) Indonesia Section.