Sim, I. C. G. (2018). Pre-operative cognitive training to prevent post-operative cognitive dysfunction in older patients cognitrain: A randomised controlled trial.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sim, Ivy Chui Geok. Pre-operative Cognitive Training to Prevent Post-operative Cognitive Dysfunction in Older Patients Cognitrain: A Randomised Controlled Trial. 2018.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Sim, Ivy Chui Geok. Pre-operative Cognitive Training to Prevent Post-operative Cognitive Dysfunction in Older Patients Cognitrain: A Randomised Controlled Trial. 2018.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.