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Gaya APA

Ramli, S. (2010). Sistem manajemen keselamatan & kesehatan kerja OHSAS 18001 . Jakarta: PT.Dian Rakyat.

Gaya MLA

Ramli, Soehatman. "Sistem manajemen keselamatan & kesehatan kerja OHSAS 18001". Jakarta: PT.Dian Rakyat, 2010. Text.