PPT Slide
- Yamada, Masataka, Ruji Furukawa and Mamoru Ishihara (1997) “A Classification Method of Diffusion Patterns with a Class Map,” ACTA HUMANISTICA ET SCIENTIFICA, UNIVERSITATIS SANGIO KYOTIENSIS, Vol. 28, No. 2, Social Science Series No. 14 (March), Kyoto Sangyo University, 59-82.