Casson, Lionel. 1989. The Periplus Maris Erythraei. (Translation by H. Frisk, 1927, with some updates and improvements). Princeton, Princeton University Press. (This is considered by some the most accurate translation of the Periplus into English, and also includes the Greek text.)
Chami, F. A. 1999. "The Early Iron Age on Mafia island and its relationship with the mainland." Azania, 34, pp. 1–10.
Huntingford, G. W. B. 1980. Periplus of the Erythraean Sea. London: the Hakluyt Society.
Miller, J. Innes. 1969. Chapter 8: "The Cinnamon Route". In: The Spice Trade of the Roman Empire. Oxford: University Press. ISBN 0-19-814264-1
Ray, Himanshu Prabha, ed. 1999. Archaeology of Seafaring: The Indian Ocean in the Ancient Period. Pragati Publications, Delhi.
Schoff, Wilfred H. 1912. The Periplus of the Erythræan Sea. New York, Longmans, Green, and Co. Second Edition. Reprint, New Delhi, Oriental Books Reprint Corporation. 1974.