Montreal Horticultural Society and Fruit Growers' Association of the Province of Quebec. First Report of the Fruit Committee (google). Witness Printing House, 1876, p. 25.
川原勝征. 屋久島の植物 (google). Witness Printing House, 1876, p. 109.
Hsu, Hong-Yen. Oriental materia médica: a concise guide (snippet). Oriental Healing Arts Institute, 1986, p. 382., "..citral, citronellal, dipentene; (+)-phellandrene, geraniol;(2)pungent substances: sanshool I (a-sanshool), sanshoamide"