Ganguly Subrata Symbol script and writing from petrogram to printing and further - Delhi Sharda Publishing House India 2004 - 238p. cm. ISBN: 8185934070 (hbk) 1100 Standard No.: 12995 Source: 339, 21/03/2014, Standard Book House Textual Subjects--Topical Terms: LINGUISTICS Dewey Class. No.: P(1), P4