S. J. Mangalam. (1997). Prachina bharathiya lipishasthravum malayala lipiyude vikasavum: (Ancient Indian palaeography and development of Malayalam scripts). State institute of languages.
Dyfyniad Arddull ChicagoS. J. Mangalam. Prachina Bharathiya Lipishasthravum Malayala Lipiyude Vikasavum: (Ancient Indian Palaeography and Development of Malayalam Scripts). TVM: State institute of languages, 1997.
Dyfyniad MLAS. J. Mangalam. Prachina Bharathiya Lipishasthravum Malayala Lipiyude Vikasavum: (Ancient Indian Palaeography and Development of Malayalam Scripts). State institute of languages, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.