酒井優子
Japanese Syntax Tree Diagram: Based on Universal Sentence Structure. Createspace, June 12, 2017, ISBN 978-1546555117
English Syntax Tree Diagram: Based on Universal Sentence Structure. Createspace, June 21, 2017, ISBN 978-1547232208
Ainu Syntax Tree Diagram: Based on Universal Sentence Structure. Createspace, November 8, 2017, ISBN 978-1548237745
Communicativism and Cognitivism in Linguistics: From Plato beyond Chomsky. Createspace, August 26, 2018, ISBN 978-1979570985
Chinese Syntax Tree Diagram: Based on Universal Sentence Structure. Createspace, August 7, 2019, ISBN 978-1792071379