Tan, S. I. (1992). The use and comprehension of English third person pronouns by students in upper secondary schools in Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Tan, Siew Imm. The Use and Comprehension of English Third Person Pronouns by Students in Upper Secondary Schools in Malaysia. 1992.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Tan, Siew Imm. The Use and Comprehension of English Third Person Pronouns by Students in Upper Secondary Schools in Malaysia. 1992.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.