Khairul Faizah Mohd. Khalid. (1999). The predictive value of clinical and echocardiography findings in evaluation of pulmonary hypertension in patients with ventricular septal defect undergoing surgical closure and its correlation with lung biopsy results. Universiti Kebangsaan Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Khairul Faizah Mohd. Khalid. The Predictive Value of Clinical and Echocardiography Findings in Evaluation of Pulmonary Hypertension in Patients with Ventricular Septal Defect Undergoing Surgical Closure and Its Correlation with Lung Biopsy Results. Kuala Lumpur: Universiti Kebangsaan Malaysia, 1999.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Khairul Faizah Mohd. Khalid. The Predictive Value of Clinical and Echocardiography Findings in Evaluation of Pulmonary Hypertension in Patients with Ventricular Septal Defect Undergoing Surgical Closure and Its Correlation with Lung Biopsy Results. Universiti Kebangsaan Malaysia, 1999.