Hamida Bee Bi Abdul Karim. (1996). Factors influencing the performance of Universiti Utara Malaysia matriculation students in learning English as a foreign language.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Hamida Bee Bi Abdul Karim. Factors Influencing the Performance of Universiti Utara Malaysia Matriculation Students in Learning English as a Foreign Language. 1996.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Hamida Bee Bi Abdul Karim. Factors Influencing the Performance of Universiti Utara Malaysia Matriculation Students in Learning English as a Foreign Language. 1996.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.