Chieng, S. L. (2014). The effects of direct and indirect written corrective feedback on the use of present tenses among ESL learners.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Chieng, Shea Lee. The Effects of Direct and Indirect Written Corrective Feedback on the Use of Present Tenses Among ESL Learners. 2014.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Chieng, Shea Lee. The Effects of Direct and Indirect Written Corrective Feedback on the Use of Present Tenses Among ESL Learners. 2014.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.