Murphy, R. (2012). essential grammar in use: Aself-study reference and practice book for elementary students of English with answers. Cambridge University Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Murphy, Raymond. Essential Grammar in Use: Aself-study Reference and Practice Book for Elementary Students of English with Answers. Cambridge University Press, 2012.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Murphy, Raymond. Essential Grammar in Use: Aself-study Reference and Practice Book for Elementary Students of English with Answers. Cambridge University Press, 2012.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.