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Ghahramani, Abolfazl and Summala, Heikki (2017) A study of the effect of OHSAS 18001 on the occupational injury rate in Iran. International Journal of Injury Control and Safety Promotion, 24 (1). pp. 78-83.
Ghahramani, Abolfazl and Summala, Heikki (2015) A study of the effect of OHSAS 18001 on the occupational injury rate in Iran. International Journal of Injury Control and Safety Promotion, 22 (11). pp. 1-7.