References :
1. Mani Singh, Bhai, Sikhan di Bhagat Mala. Amritsar, 1955
2. Santokh Singh, Bhai, Sri Gur Pratdp Suraj Granth. Amritsar, 1927-35
3. Sohan Kavi, Gurbilds Chhevin Pdtshdhi. Amritsar, 1968
4. Gian Singh, Giani, Twarikh Guru Khalsd [Reprint], Patiala. 1970
5. Macauliffe, Max Arthur., The Sikh Religion. Oxford, 1909