Al-Fraih, M. A., & Al-Ahaydib, M. I. (2016). Preschoolers awareness of time: The cognition of temporal concepts in childhood. Al-Imam Muhammad Ibn Saud Islamic University,College Languages and Translation, Department of English Language and Literature.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Al-Fraih, Manal Abdurahman, و Mohammed Ibrahim Al-Ahaydib. Preschoolers Awareness of Time: The Cognition of Temporal Concepts in Childhood. Riyadh: Al-Imam Muhammad Ibn Saud Islamic University,College Languages and Translation, Department of English Language and Literature, 2016.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Al-Fraih, Manal Abdurahman, و Mohammed Ibrahim Al-Ahaydib. Preschoolers Awareness of Time: The Cognition of Temporal Concepts in Childhood. Al-Imam Muhammad Ibn Saud Islamic University,College Languages and Translation, Department of English Language and Literature, 2016.