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توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Al-Saadoun, L. A., & Gomaa, Y. (2015). Acquisition of present tense by EFL female students. Al-Imam Muhammed Ibn Saud Islamic University, College of Languages and Translation,Department of English languages.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Al-Saadoun, Lolo Abdulaah, و Yasser Gomaa. Acquisition of Present Tense by EFL Female Students. Riyadh: Al-Imam Muhammed Ibn Saud Islamic University, College of Languages and Translation,Department of English languages, 2015.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Al-Saadoun, Lolo Abdulaah, و Yasser Gomaa. Acquisition of Present Tense by EFL Female Students. Al-Imam Muhammed Ibn Saud Islamic University, College of Languages and Translation,Department of English languages, 2015.