Sen, K. C. (1934). Spiritual progress: Sayings and writings of Keshub Chunder Sen. Navavidhan Publication Committee.
Chicago-referens (17:e uppl.)Sen, Keshub Chunder. Spiritual Progress: Sayings and Writings of Keshub Chunder Sen. Calcutta: Navavidhan Publication Committee, 1934.
MLA-referens (8:e uppl.)Sen, Keshub Chunder. Spiritual Progress: Sayings and Writings of Keshub Chunder Sen. Navavidhan Publication Committee, 1934.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.