Tenpyōbito no koe o kiku : chika no Shōsōin Heijōkyū mokkan no subete : Heijōkyū Ato Shiryōkan shūki tokubetsuten : Heijōkyū ato hakkutsu chōsa 50-shūnen kinen (Kokuritsu Bunkazai Kikō Nara Bunkazai Kenkyūjo, 2010)
Also published in English: Voices from the Tenpyō era.