Khalid, R. S. (2018). Development of comprehensive analytical methods for the assessment of toxic elements in selected Malaysian medicinal plants and their formulation. Kulliyyah of Pharmacy, International Islamic University Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Khalid, Reem Saadi. Development of Comprehensive Analytical Methods for the Assessment of Toxic Elements in Selected Malaysian Medicinal Plants and Their Formulation. Kuantan, Pahang: Kulliyyah of Pharmacy, International Islamic University Malaysia, 2018.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Khalid, Reem Saadi. Development of Comprehensive Analytical Methods for the Assessment of Toxic Elements in Selected Malaysian Medicinal Plants and Their Formulation. Kulliyyah of Pharmacy, International Islamic University Malaysia, 2018.