APA (7 वां संस्करण) प्रशस्ति पत्र

Abubakar, U. S. (2018). Heavy metal distribution, mobility and risk assessment in surface sediment of Sungai Puloh in Selangor, Malaysia.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Abubakar, Usman Sadiq. Heavy Metal Distribution, Mobility and Risk Assessment in Surface Sediment of Sungai Puloh in Selangor, Malaysia. 2018.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Abubakar, Usman Sadiq. Heavy Metal Distribution, Mobility and Risk Assessment in Surface Sediment of Sungai Puloh in Selangor, Malaysia. 2018.

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