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Joined 23 April 2019
- ↑ Kumar, Rajiv (1993). "The Problem", Children's Curiosity, Intelligence and Scholastic Achievement (hardbound), Bhargava research monograph series ; no.68, 4/230, Kacheri Ghat, Agra: National Psychological Corporation, 1. ISBN 978-81-85316-40-6. OCLC 60108651. Retrieved on 15 April 2019.