Zulkifli Mohamad Yunus. (2013). A study on factors associated with physical fitness status among emergency response team of an oil and gas company in peninsular Malaysia. Universiti Kebangsaan Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Zulkifli Mohamad Yunus. A Study on Factors Associated with Physical Fitness Status Among Emergency Response Team of an Oil and Gas Company in Peninsular Malaysia. Kuala Lumpur: Universiti Kebangsaan Malaysia, 2013.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Zulkifli Mohamad Yunus. A Study on Factors Associated with Physical Fitness Status Among Emergency Response Team of an Oil and Gas Company in Peninsular Malaysia. Universiti Kebangsaan Malaysia, 2013.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.