APA (7 वां संस्करण) प्रशस्ति पत्र
Ahmad, G., & Md. Shahabuddin. (2000). Practical Physics: For degree students (4th rev. ed.). Hafiz Book Center.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Ahmad, Gasuddin, और Md. Shahabuddin. Practical Physics: For Degree Students. 4th rev. ed. Dhaka: Hafiz Book Center, 2000.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Ahmad, Gasuddin, और Md. Shahabuddin. Practical Physics: For Degree Students. 4th rev. ed. Hafiz Book Center, 2000.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.