Usman, U. A. (2021). Geochemistry and remediation of Fe, Mn, and As in groundwater from quaternary alluvium, lower Kelantan Basin, north-eastern coast of Peninsular Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Usman, Usman Abdullahi. Geochemistry and Remediation of Fe, Mn, and As in Groundwater from Quaternary Alluvium, Lower Kelantan Basin, North-eastern Coast of Peninsular Malaysia. 2021.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Usman, Usman Abdullahi. Geochemistry and Remediation of Fe, Mn, and As in Groundwater from Quaternary Alluvium, Lower Kelantan Basin, North-eastern Coast of Peninsular Malaysia. 2021.
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