Sundrasan Muthoo. (2011). Prevalence and factors influencing sickness absence: A cross sectional study among workers in a ship building industry in Lumut, Perak. Faculty of Medicine, Universiti Kebangsaan Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sundrasan Muthoo. Prevalence and Factors Influencing Sickness Absence: A Cross Sectional Study Among Workers in a Ship Building Industry in Lumut, Perak. Kuala Lumpur: Faculty of Medicine, Universiti Kebangsaan Malaysia, 2011.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Sundrasan Muthoo. Prevalence and Factors Influencing Sickness Absence: A Cross Sectional Study Among Workers in a Ship Building Industry in Lumut, Perak. Faculty of Medicine, Universiti Kebangsaan Malaysia, 2011.
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