- eBookDiego Collado's Grammar of the Japanese LanguageRichard L. Spear
- eBookArs grammaticae Iaponicae linguaeDiego Collado
- eBookArs grammaticae Iaponicae linguaeDiego Collado
- eBookDiego Collado's Grammar of the Japanese LanguageDiego Collado
- eBookDiego Collado's Grammar of the Japanese LanguageDiego Collado