Sulaiman Ngah Razali. (1986). Comparison of perceptions of the importance of high school chemistry among various instructors and students in the United States and Malaysia. University Microfilms International.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sulaiman Ngah Razali. Comparison of Perceptions of the Importance of High School Chemistry Among Various Instructors and Students in the United States and Malaysia. Ann Arbor, Mich.: University Microfilms International, 1986.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Sulaiman Ngah Razali. Comparison of Perceptions of the Importance of High School Chemistry Among Various Instructors and Students in the United States and Malaysia. University Microfilms International, 1986.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.