| Kakumasu, James Y. and Kiyoko Kakumasu, compilers | Dicionário por tópicos urubu-kaapor--português | 1988 | | Linguistics |
| Kakumasu, James Y. | Kaapor Museu Wordlist | 1962 | | Language Assessment, Linguistics |
| Kakumasu, James Y. | Connectives in Urubú Narratives | 1977 | | Linguistics |
| Kakumasu, James Y. | Phonemic Statement [Kaapor] | 1964 | | Linguistics |
| Kakumasu, James Y.; Kakumasu, Kiyoko | Urubú Grammar | 1968 | | Linguistics |
| Kakumasu, James and Kiyoko Kakumasu, compilers | Outros Textos Urubu-Kaapor | 1995 | | Linguistics |
| Kakumasu, James Y. | Formulário Padrão Tupí | 1977 | | Language Assessment, Linguistics |
