Yumiko Sumitani. D. H. Lawrence's Confrontation of Eugenics: From Encounter with the Pre-Darwinian Theories. Kobe College. 2015
Yumiko Sumitani. The Contagious Disease: From Jude the Obscure and to Sons and Lovers. 阪南論集. 2013. 48巻. 2号. 11-18
Yumiko Sumitani. D.H.Lawrence's Early Works Representing the Final Phase of Demographic Transition: Based on Thomas Robert Malthus's Population Theory. The Edgewood Review. 2011. 37号. 21-34
角谷 由美子. Birth control in Lady Chatterley's lover: D.H. Lawrence's contradictory response to eugenics. D.H.ロレンス研究. 2009. 19. 1-12
Yumiko Sumitani. Birth Conrol in Lady Chatterley's Lover: D. H. Lawrence's Contradictory Response to Eugenics. D. H. ロレンス研究. 2009. 19号. 1-12