Ravinder G. B. Singh. (1983). Indian philosophical tradition and Guru Nanak: A study based on the conceptual terminology used in Guru Nanak bani. Punjab Pub. House.
Lua i Stíl Chicago (17ú heag.)Ravinder G. B. Singh. Indian Philosophical Tradition and Guru Nanak: A Study Based on the Conceptual Terminology Used in Guru Nanak Bani. Patiala: Punjab Pub. House, 1983.
Lua MLA (8ú heag.)Ravinder G. B. Singh. Indian Philosophical Tradition and Guru Nanak: A Study Based on the Conceptual Terminology Used in Guru Nanak Bani. Punjab Pub. House, 1983.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.