Saraswati, Niran. Dharana darshan : Yogic, tantric and upanishadic practices of concentration and visualization / By Niran Saraswati. - 1st Ed. - Bihar : YogPublication Trust, 2013. - 439 p. ; 00 cm. ISBN: 9788186336304 Subjects--Topical Terms: Other religions. Dewey Class. No.: 294.582 / SAR