Choo, B. H. (1990). The association between a graded exercise stress test and coronary angiogram in patients with suspected coronary artery disease attending the Cardiology Clinic University Kebangsaan Malaysia, Kuala Lumpur. Universiti Kebangsaan Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Choo, Beng Huat. The Association Between a Graded Exercise Stress Test and Coronary Angiogram in Patients with Suspected Coronary Artery Disease Attending the Cardiology Clinic University Kebangsaan Malaysia, Kuala Lumpur. Kuala Lumpur: Universiti Kebangsaan Malaysia, 1990.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Choo, Beng Huat. The Association Between a Graded Exercise Stress Test and Coronary Angiogram in Patients with Suspected Coronary Artery Disease Attending the Cardiology Clinic University Kebangsaan Malaysia, Kuala Lumpur. Universiti Kebangsaan Malaysia, 1990.