Tahir, W. E. (2005). Design and implementation of a pressure based typing biometric authentication system. Kulliyyah of Engineering, International Islamic University Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Tahir, Wasil Elsadig. Design and Implementation of a Pressure Based Typing Biometric Authentication System. Gombak, Selangor: Kulliyyah of Engineering, International Islamic University Malaysia, 2005.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Tahir, Wasil Elsadig. Design and Implementation of a Pressure Based Typing Biometric Authentication System. Kulliyyah of Engineering, International Islamic University Malaysia, 2005.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.