DR GOEL. R. (2014). LEARNING ELEMENTARY CHEMISTRY WITH ONLINE SUPPORT FOR CLASS- 6. GOYAL BRO PRAKASHAN.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDR GOEL. R. LEARNING ELEMENTARY CHEMISTRY WITH ONLINE SUPPORT FOR CLASS- 6. GOYAL BRO PRAKASHAN, 2014.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDR GOEL. R. LEARNING ELEMENTARY CHEMISTRY WITH ONLINE SUPPORT FOR CLASS- 6. GOYAL BRO PRAKASHAN, 2014.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.