Jamaiah Haji Yahaya. (2007). The development of software certification model based on product quality approach. Fakulti Teknologi dan Sains Maklumat, Universiti Kebangsaan Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Jamaiah Haji Yahaya. The Development of Software Certification Model Based on Product Quality Approach. Bangi, Selangor: Fakulti Teknologi dan Sains Maklumat, Universiti Kebangsaan Malaysia, 2007.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Jamaiah Haji Yahaya. The Development of Software Certification Model Based on Product Quality Approach. Fakulti Teknologi dan Sains Maklumat, Universiti Kebangsaan Malaysia, 2007.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.