GUPTA.K.K & MALHOTRA, S. (2010). FRANK MIDDLE SCHOOL SCIENCE AND TECHNOLOGY WORKBOOK CLASS- 8. FRANK BROS & CO.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGUPTA.K.K & MALHOTRA, STALIN. FRANK MIDDLE SCHOOL SCIENCE AND TECHNOLOGY WORKBOOK CLASS- 8. FRANK BROS & CO, 2010.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGUPTA.K.K & MALHOTRA, STALIN. FRANK MIDDLE SCHOOL SCIENCE AND TECHNOLOGY WORKBOOK CLASS- 8. FRANK BROS & CO, 2010.
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