Vivekananda Swamikal <br/><br/>
Jnana yogam / 
by Vivekananda Swamikal 
 - 4th ed. 
 - Thrissur :  Sree Ramakrishna Math,  1992. 
<br/><br/><br/>In Malayalam 
<br/><br/><label>Subjects--Index Terms: </label>Jnanyogam Spiritual experience and Mysticism