3.沉香木：Paul Wheatley, “Geographical Notes on Some Commodities Involved in Sung Maritime Trade.” Journal of the Malayan Branch of the Royal Asiatic Society 32.2 (1959)：3-139，22—23页提及调整精品和杂货的税率，25—26页提到了任命贸易监督官员，69—72页提到了沉香木。
4.香水的配方：扬之水“L’Encens sous les Song (960-1279) and les Yuan (1279-1368).” Parfums de Chine: la culture de l’encens au temps des empereurs, ed. éric Lefebvre (2018): 68-75.
5.《源氏物语》：Ivan Morris, The World of the Shining Prince: Court Life in Ancient Japan (1964); Dennis Washburn (trans.), Murasaki Shikibu, The Tale of Genji (2017)：407页提到余香，608—613页提到竞香。