(CIDB), C. I. D. B. (2011). Introduction to the IBS Content Scoring System (IBS score) manual. The Institution of Engineers, Malaysia.
استشهاد بنمط شيكاغو(CIDB), Construction Industry Development Board. Introduction to the IBS Content Scoring System (IBS Score) Manual. The Institution of Engineers, Malaysia, 2011.
MLA استشهاد(CIDB), Construction Industry Development Board. Introduction to the IBS Content Scoring System (IBS Score) Manual. The Institution of Engineers, Malaysia, 2011.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.