Ngeow, A. C. (1983). An investigation of the reading activities in the content-area classrooms of selected secondary schools in Singapore.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ngeow, Ah Cheng. An Investigation of the Reading Activities in the Content-area Classrooms of Selected Secondary Schools in Singapore. 1983.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Ngeow, Ah Cheng. An Investigation of the Reading Activities in the Content-area Classrooms of Selected Secondary Schools in Singapore. 1983.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.