1. Abe, A. 2008. Kodomo no hinkon (Child poverty), Tokyo: Iwanami Shoten. (in Japanese)
2. Ezawa, A. 2016. Single mothers in contemporary Japan: Motherhood, class, and reproductive practice. London: Lexington Books.
3. Fukuda, S., S. Yoda, and R. Mogi. 2021. Educational assortative mating in Japan: Evidence from the 1980–2010 Census. The Journal of Population Studies 57: 1–20.
4. Fukuda. N. 2009. Haigūsha tono wakare to futatabi no deai: Ribetsu to shibetsu, saikon (Spousal separation and new partners: Divorce, widowhood, and remarriage). In Gendai Nihonnjin no kazoku, S. Fujimi and M. Nishino (Eds), 72–84. Tokyo: Yuhikaku Books. (in Japanese)
5. Iwasawa, M., and K. Kamata. 2013. Konzen ninshin kekkon ha shussango no josei no hatarakikata ni eikyō suruka (Does marriage preceded by pregnancy affect women’s subsequent work patterns? Nihon Rōdō Kenkyū Zasshi 638: 17–32. (in Japanese)