Doran, Edwin Jr. (1974). "Outrigger Ages". The Journal of the Polynesian Society. 83 (2): 130–140. Archived from the original on 18 January 2020. Retrieved 20 June 2019.
Sen, Tansen (January 2014). "Maritime Southeast Asia Between South Asia and China to the Sixteenth Century". TRaNS: Trans-Regional and -National Studies of Southeast Asia. 2 (1): 31–59. doi:10.1017/trn.2013.15.
Olivera, Baldomero; Hall, Zach; Granberg, Bertrand (31 March 2024). "Reconstructing Philippine history before 1521: the Kalaga Putuan Crescent and the Austronesian maritime trade network". SciEnggJ. 17 (1): 71–85. doi:10.54645/2024171ZAK-61.
Sen, Tansen (3 February 2014). "Maritime Southeast Asia Between South Asia and China to the Sixteenth Century". TRaNS: Trans-Regional and -National Studies of Southeast Asia. 2 (1): 31–59. doi:10.1017/trn.2013.15. S2CID140665305.
Sen, Tansen (3 February 2014). "Maritime Southeast Asia Between South Asia and China to the Sixteenth Century". TRaNS: Trans-Regional and -National Studies of Southeast Asia. 2 (1): 31–59. doi:10.1017/trn.2013.15. S2CID140665305.
At any rate, when Gallus was prefect of Egypt, I accompanied him and ascended the Nile as far as Syene and the frontiers of Ethiopia, and I learned that as many as one hundred and twenty vessels were sailing from Myos Hormos to India, whereas formerly, under the Ptolemies, only a very few ventured to undertake the voyage and to carry on traffic in Indian merchandise. – Strabo (II.5.12.); Source.
Doran, Edwin Jr. (1974). "Outrigger Ages". The Journal of the Polynesian Society. 83 (2): 130–140. Archived from the original on 18 January 2020. Retrieved 20 June 2019.