Ahmad Suffian bin Sulaiman. (2015). Identification of the main factors affecting waterproofing problems of reinforced concrete (RC) flat roof: A case study of Perkeso buildings. Kulliyyah of Architecture and Environmental Design, Internatioal Islamic University Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ahmad Suffian bin Sulaiman. Identification of the Main Factors Affecting Waterproofing Problems of Reinforced Concrete (RC) Flat Roof: A Case Study of Perkeso Buildings. Kuala Lumpur: Kulliyyah of Architecture and Environmental Design, Internatioal Islamic University Malaysia, 2015.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Ahmad Suffian bin Sulaiman. Identification of the Main Factors Affecting Waterproofing Problems of Reinforced Concrete (RC) Flat Roof: A Case Study of Perkeso Buildings. Kulliyyah of Architecture and Environmental Design, Internatioal Islamic University Malaysia, 2015.