Abdan, A. A. (1983). The effect of sentence - combining practice on the written syntactic maturity, overall writing quality, and reading comprehension of EFL Saudi students. University of Kansas.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Abdan, Abdulrahman A. The Effect of Sentence - Combining Practice on the Written Syntactic Maturity, Overall Writing Quality, and Reading Comprehension of EFL Saudi Students. Kansas: University of Kansas, 1983.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Abdan, Abdulrahman A. The Effect of Sentence - Combining Practice on the Written Syntactic Maturity, Overall Writing Quality, and Reading Comprehension of EFL Saudi Students. University of Kansas, 1983.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.