Old Literature :
1) Shiva Purana. In Sanskrit.
2) Shri. Devi Mahatmya. In Sanskrit.
3) Shri. Gurucharitra. In Sanskrit.
4) Jabalopanishad : A Complete Upanishad from Rigveda giving valuable information on Rudraksha. In Sanskrit language.
The upanishad is written by Rishi Jabal.
Books on Rudraksha :
1) Rudraksha Mahima, 1995. S.G. Zambare, M/S. Anjali Publishing House, 1511, Sadashiv Peth, Pune : 411 030.
pp. 130. In Marathi language.
2) Rudraksha Mahima, D.H. Junnarkar, M/S. Sharada Sahitya, 28/A, Amber Chambers, Appa Balwant Chowk, Pune : 411 030.
pp. 56. In Marathi.
3) Rudraksha, 1999. Vasantrao Vaidya, Majestic Prakashan, 316, Prasad Chambers, Girgaon, Mumbai : 400 004.
pp. 88. In Marathi.
4) Ratna Aur Rudraksha, 1990. Tantrik Bahal, Randhir Book Sales, Railway Road, Haridwar : 249 401. India.
pp. 190. In Hindi. Reprinted in 2001.
5) Rudraksha Aur Ratnamala, 2002. Govind Mali, Sadhana Pocket Books, 39, U.A. Bungalow Road, Jawarhar Nagar,
New Delhi : 110 007. In Hindi.
6) Rudraksha Rahasya, 2003. Pandit Atmaram, Anjali Publishing House, 'Saptashrungi', 1511, Sadashiv Peth, Pune : 411 030.
pp.84. In Marathi.
7) Rudraksha Mahima Aur Prayog, Ram Narayan Dwivedi, Garg and Company, 5151, Chowk Lahori Gate, New Delhi 110 006.
pp. 64. In Hindi.
8) Rudraksha Aur Ratna Rahasya, Kanahiyalal Goyal, Aslomal Kanahiyalal, Ramgiri Ki Haveli, Bada Bazar, Haridwar : 249401.
pp. 104. In Hindi.
9) Rudraksha Shakti ke Chamatkar, Manoj Pocket Book House, 761, Main Road, Buradi, New Delhi : 110 084.
pp. 144. In Hindi.
10) Rudraksha Jyotish Aur Rudraksha, Narendra Tandon, Durga Pocket Books, 351, Ishwar Puri, Meerut : 250 002.
pp. 159. In Hindi.
11) Rudraksha. 2001. Narendra Bhandari, Chinmaya Mission Trust, Powai, Mumbai, In English.
12) Rudraksha. 2000. Suhas Rai, Banaras Hindu University, In English.