APA (7 वां संस्करण) प्रशस्ति पत्र

Ehsan, A. H. (2014). Properties of self-compacting concrete incorporating palm oil fuel ash.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Ehsan, Abdul Haq. Properties of Self-compacting Concrete Incorporating Palm Oil Fuel Ash. 2014.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Ehsan, Abdul Haq. Properties of Self-compacting Concrete Incorporating Palm Oil Fuel Ash. 2014.

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