Al-Shugithri, A. M. S., & Gomaa, Y. A. (2015). The use of code-switching by EFL Saudi university teachers. Al-Imam Muhammed Ibn Saud Islamic University, College of Languages and Translation, Department of English Language and Literature.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Al-Shugithri, Ashwaq Maziyad Saad, و Yasser Ahmed Gomaa. The Use of Code-switching by EFL Saudi University Teachers. Riyadh: Al-Imam Muhammed Ibn Saud Islamic University, College of Languages and Translation, Department of English Language and Literature, 2015.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Al-Shugithri, Ashwaq Maziyad Saad, و Yasser Ahmed Gomaa. The Use of Code-switching by EFL Saudi University Teachers. Al-Imam Muhammed Ibn Saud Islamic University, College of Languages and Translation, Department of English Language and Literature, 2015.