David E. Sopher (1965). «The Sea Nomads: A Study Based on the Literature of the Maritime Boat People of Southeast Asia». Memoirs of the National Museum5: 389-403. JSTOR2051635. S2CID162358347. doi:10.2307/2051635.
David E. Sopher (1965). «The Sea Nomads: A Study Based on the Literature of the Maritime Boat People of Southeast Asia». Memoirs of the National Museum5: 389-403. JSTOR2051635. S2CID162358347. doi:10.2307/2051635.
David E. Sopher (1965). «The Sea Nomads: A Study Based on the Literature of the Maritime Boat People of Southeast Asia». Memoirs of the National Museum5: 389-403. JSTOR2051635. S2CID162358347. doi:10.2307/2051635.