- Fujiwara,A. & Sonoyama,S.(2018). The effects of selection and intervention in social play based on an ecological assessment of a child with autism spectrum disorder at a kindergarten. Journal of Special Education Research, 7(1), 47-56.
- Shimoyama,M., Iwasa,K., & Sonoyama,S.(2018). The prevalence of mental health problems in adults with intellectual disabilities in Japan, associated factors and mental health service use. Journal of Intellectual Disability Research, 62, 931-940.
- Cho,S. & Sonoyama,S. (2017). Parent-implemented liquid fading to establish milk consumption in a child with autism spectrum disorder. Journal of Special Education Research, 6(1), 45-53.