Digital images of kī kare niscit sāphalya o ṭenśan mukta jiban lābh karben?, a guide to well-being. Written by del kārṇegī, published by Hira Productions. No date.
"The original material is owned and held by Gautam Mitra; access enquiries should be directed to Gautam Mitra via the School of Cultural Texts and Records, Jadavpur University, Kolkata.".
"The original material is owned and held by Gautam Mitra; access enquiries should be directed to Gautam Mitra via the School of Cultural Texts and Records, Jadavpur University, Kolkata.".