- Author: George Coedès
- Language: English
- Year: 1968
- Author: George Coedes
- Language: English
- Year: 1968
- Author: Hajime Nakamura
- Language: English
- Year: 1964
- Author: Hajime Nakamura
- Language: English
- Year: 1964
- Author: Kitaro Nishida Robert Schinzinger
- Language: English
- Year: 1966
- Author: Nghiêm Dang.
- Language: English
- Year: 1966
- Author: Birinchi Kumar Barua
- Language: English
- Year: 1965
- Author: N. H. Zide, Colin P. Masica, K. C. Bahl, A. C. Chandola
- Language: Hindi
- Year: 1962