Niza binti Samsuddin. (2005). Study of carboxyhaemoglobin level and neuropsychological symtoms among highway tollbooth operators in the Klang Valley. Universiti Kebangsaan Malaysia Community Health Department, Medical Faculty, Universiti Kebangsaan Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Niza binti Samsuddin. Study of Carboxyhaemoglobin Level and Neuropsychological Symtoms Among Highway Tollbooth Operators in the Klang Valley. Kuala Lumpur Kuala Lumpur: Universiti Kebangsaan Malaysia Community Health Department, Medical Faculty, Universiti Kebangsaan Malaysia, 2005.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Niza binti Samsuddin. Study of Carboxyhaemoglobin Level and Neuropsychological Symtoms Among Highway Tollbooth Operators in the Klang Valley. Universiti Kebangsaan Malaysia Community Health Department, Medical Faculty, Universiti Kebangsaan Malaysia, 2005.