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'Nijjar', 'Nijher', 'Nijjar', 'Nijar', 'Nijer' is a surname found commonly among people of the Jat clan from the Northern Indian state of Punjab.
- Max Arthur Macauliffe: A History of the Sikhs; Vol. I, Princeton, 1963.
- Bakshish S. Nijjar: History of the Babar Akalis; Jalandhar, ABS Publications, 1987.
- Bakshish S. Nijjar: Indian Punjab; Jalandhar, ABS Publications, 1985.
- Balbir S. Nijjar: Census Records and Family History (Pre-Partition to 2000)