Ken'ichi Yamazaki. How do Japanese EFL learners sustain their conversations? A qualitative analysis of communication strategies. JACET Journal of Developmental Education. 2024. 4. 75-92
Ken'ichi Yamazaki. Enhancing EFL Learners’ Communication Skills in English Classes at a Japanese University. TELES Journal. 2023. 43. 181-196
Ken'ichi Yamazaki. Evaluating Speaking Performance of College-Level Japanese EFL Learners; A Trial Investigation Using an External English-Speaking Test. Journal of Teaching English. 2022. 31. 111-123
Ken'ichi Yamazaki. Effects of Longitudinal Speaking Practice in English Classes at a Japanese University. TELES Journal. 2022. 42. 167-182
Ken'ichi Yamazaki. Writing versus Speaking: Effects of Classroom Oral Practice on Speaking Performance of Japanese EFL Learners. APU Web Journal A. 2021. 9. 148-155
The Effects of a Long-Term Speaking Training for Japanese College Students in English Club: An Introductory Examination of Extracurricular Activities
(60th JACET International Convention 2021)
The Effect of Scaffolding Instruction on Speaking Skills in English Classes: A Comparative Analysis of Assisted and Non-assisted Students’ Speaking Skills
(59th JACET International Convention 2020)