APA (7 वां संस्करण) प्रशस्ति पत्र
Pal, B., & Das, K. (2021). Engineering mathematics(Volume-I): For 1st year 1st semester courses of all streams (10th ed.). U.N.Dhur and Sons.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Pal, B.K, और K. Das. Engineering Mathematics(Volume-I): For 1st Year 1st Semester Courses of All Streams. 10th ed. Kolkata: U.N.Dhur and Sons, 2021.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Pal, B.K, और K. Das. Engineering Mathematics(Volume-I): For 1st Year 1st Semester Courses of All Streams. 10th ed. U.N.Dhur and Sons, 2021.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.