References
- Jett, S. C. 1968. Malaysia and tropical America: Some racial, cultural, and ethnobotanical comparisons. International Congress of Americanists 37 (4): 133–77.
- Riley, C. L., J. C. Kelley, C. W. Pennington, and R. L. Rands. 1971. Man across the sea: Problems of pre-Columbian contacts. Austin: University of Texas Press.