H K Manmohan Siṅgh. "The Punjab". The Encyclopedia of Sikhism, Editor-in-Chief Harbans Singh. Punjabi University, Patiala. Diarsipkan dari versi asli tanggal 5 March 2016. Diakses tanggal 18 August 2015.
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H K Manmohan Siṅgh. "The Punjab". The Encyclopedia of Sikhism, Editor-in-Chief Harbans Singh. Punjabi University, Patiala. Diarsipkan dari versi asli tanggal 5 March 2016. Diakses tanggal 18 August 2015.