Raj Kumar a/l A. M. Narayanan. (1996). The Prevalence of allergic rhinitis in patients with recurrent or chronic sinusitis presenting to the Otorhinolaringology Department of Universiti Kebangsaan Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Raj Kumar a/l A. M. Narayanan. The Prevalence of Allergic Rhinitis in Patients with Recurrent or Chronic Sinusitis Presenting to the Otorhinolaringology Department of Universiti Kebangsaan Malaysia. 1996.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Raj Kumar a/l A. M. Narayanan. The Prevalence of Allergic Rhinitis in Patients with Recurrent or Chronic Sinusitis Presenting to the Otorhinolaringology Department of Universiti Kebangsaan Malaysia. 1996.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.