Sharif Ishak, S. I. Z. (2012). Development of questionnaire for assessment of snack and fast food consumption among urban children aged 7-9 years.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sharif Ishak, Sharifah Intan Zainun. Development of Questionnaire for Assessment of Snack and Fast Food Consumption Among Urban Children Aged 7-9 Years. 2012.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Sharif Ishak, Sharifah Intan Zainun. Development of Questionnaire for Assessment of Snack and Fast Food Consumption Among Urban Children Aged 7-9 Years. 2012.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.