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Yitayih, Yimenu, Matiwos Soboka, Elias Tesfaye, Mubarek Abera, Almaz Mamaru, i Kristina Adorjan. "A Cross-sectional Study of Psychopathy and Khat Abuse Among Prisoners in the Correctional Institution in Jimma, Ethiopia." PLoS One 2020.

Yitayih, Yimenu, et al. "A Cross-sectional Study of Psychopathy and Khat Abuse Among Prisoners in the Correctional Institution in Jimma, Ethiopia." PLoS One 2020.