- Singh,
Philosophy of Sikhism. Delhi:
Atlantic Publishers & Distri, 1990
Nripinder Singh, The Sikh
Moral Tradition. Delhi: Manohar, 1990 Teja Singh, Essays...
- Ketkar. Calcutta, 1927 Sher Singh, The
Philosophy of Sikhism. La****, 1944
Nripinder Singh The Sikh
Moral Tradition. Delhi, 1990 Jodh
Singh Bhai,
Gurmati Nirnaya...