books.google.cahttp://books.google.ca/books/about/Origin_of_Br%C4%81hm%C4%AB_Script.html?id=uOMvAAAAIAAJ&utm_source=gb-gplus-shareOrigin of Brāhmī Script
Calligraphy - Indian Heritage ( 081 - 120) 81. Mitchner, John. Studies in the Indus Valley inscriptions/ John Mitchner.-New Delhi. 1978. In English. Description based on secondary source ... ignca.nic.in/ bibca004.htm