Saiful Bahri bin Saidina Amin. (1999). An Investigation into the level of investment in information technology training and factors influencing the investment in information technology training: Saiful Bahri bin Saidina Amin. International Islamic University Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Saiful Bahri bin Saidina Amin. An Investigation into the Level of Investment in Information Technology Training and Factors Influencing the Investment in Information Technology Training: Saiful Bahri Bin Saidina Amin. Jalan Gombak: International Islamic University Malaysia, 1999.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Saiful Bahri bin Saidina Amin. An Investigation into the Level of Investment in Information Technology Training and Factors Influencing the Investment in Information Technology Training: Saiful Bahri Bin Saidina Amin. International Islamic University Malaysia, 1999.