APA (7 वां संस्करण) प्रशस्ति पत्र

Ashraf, S. (2006). Design, fabrication and testing of a single step pressure regulation system for natural gas motorcycle.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Ashraf, Shameed. Design, Fabrication and Testing of a Single Step Pressure Regulation System for Natural Gas Motorcycle. 2006.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Ashraf, Shameed. Design, Fabrication and Testing of a Single Step Pressure Regulation System for Natural Gas Motorcycle. 2006.

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