Shanmugam, R. K. (2015). Reliability of safety performance indicator: Compliance and effectiveness of safety programs in construction site.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Shanmugam, Rames Kumar. Reliability of Safety Performance Indicator: Compliance and Effectiveness of Safety Programs in Construction Site. 2015.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Shanmugam, Rames Kumar. Reliability of Safety Performance Indicator: Compliance and Effectiveness of Safety Programs in Construction Site. 2015.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.