Shum, K. Y. (2012). Safety management system (SMS). The Institution of Engineers, Malaysia.
استشهاد بنمط شيكاغوShum, Keng Yan. Safety Management System (SMS). The Institution of Engineers, Malaysia, 2012.
MLA استشهادShum, Keng Yan. Safety Management System (SMS). The Institution of Engineers, Malaysia, 2012.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.