Othman, S. U. S. (2020). A study on unsafe act, unsafe condition and communication barrier for fall from height accident in construction industry.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Othman, Siti Ummi Sarah. A Study on Unsafe Act, Unsafe Condition and Communication Barrier for Fall from Height Accident in Construction Industry. 2020.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Othman, Siti Ummi Sarah. A Study on Unsafe Act, Unsafe Condition and Communication Barrier for Fall from Height Accident in Construction Industry. 2020.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.