The Presence of Starch Grains on Prehistoric Stone Tools From the Humid Neotropics: Indications of Early Tuber Use and Agriculture in PanamáNo. 8765–776
Piperno, Dolores R. and Holst, Irene. 1998. "The Presence of Starch Grains on Prehistoric Stone Tools From the Humid Neotropics: Indications of Early Tuber Use and Agriculture in Panamá." Journal of Archaeological Science, (8) 765–776.