NIRVIKAR SINGH. The Three Pillars of Sikhism: A Note on Origins. Sikh Research Journal, [S. l.], v. 4, n. 1, p. 45–52, 2019. DOI: 10.62307/srj.v4i1.114. Disponível em: https://sikhresearchjournal.org/index.php/srj/article/view/114. Acesso em: 1 apr. 2026.