Korhonen, E., Moisio, J., Tuominen, K., & Malmberg, L. (2007). Occupational health and safety: OHSAS 18001:2007 : self-assessment work book : 41 probing questions and contrasting pairs of examples : what separates the successful from the average? Oy Benchmarking Ltd..
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিKorhonen, Eero, Jussi Moisio, Kari Tuominen, এবং Lasse Malmberg. Occupational Health and Safety: OHSAS 18001:2007 : Self-assessment Work Book : 41 Probing Questions and Contrasting Pairs of Examples : What Separates the Successful from the Average? [Turku, Finland]: Oy Benchmarking Ltd., 2007.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিKorhonen, Eero, et al. Occupational Health and Safety: OHSAS 18001:2007 : Self-assessment Work Book : 41 Probing Questions and Contrasting Pairs of Examples : What Separates the Successful from the Average? Oy Benchmarking Ltd., 2007.