TOMA Kota, OMAGARI Mika, TIAN Yuan. Effects of COVID-19 on Livelihood Support for Women: Based on the interview survey of support organization. 2021. 55. 1-11
Social Survey (Preliminary Survey) Report on Child Contact in Japan. Memoirs of Osaka Institute of Technology. 2021. 66. 1. 69-133
IZUMIDA Nobuyuki, TOMA Kota, NISHIMURA Yukimitsu, SAKAKIBARA Kenjiro. Life consciousness and its related factors after the COVID-19 in Japan. 2021. 52. 1-57
TOMA Kota. The effect of childcare service and short working hours on employment of women with children under elementary school age. IPSS Working Paper Series (J). 2021. 47. 1-13