スー・サベージ＝ランボー
Why some apes imitate and/or emulate observed behavior and others do not: Fact, theory, and implications for our kind. Journal of Cognitive Education and Psychology, 7, (1), 101 -110.
Savage-Rumbaugh, S. & Fields, W.M. (2007) Rules and Tools: Beyond Anthropomorphism: A qualitative report on the stone tool manufacture and use by captive bonobos Kanzi and Panbanisha. In N. Toth's Craft Institute Oldowan Technologies 1(1).
Fields, W.M., Segerdahl, P., & Savage-Rumbaugh, E.S. (2007) "The Material Practices of Ape Language."  In J. Valsiner & Alberto Rosa (Eds.) The Cambridge Handbook of Socio-Cultural Psychology, Cambridge: Cambridge University Press.
Rumbaugh, D. M., E. S. Savage-Rumbaugh, & Taglialatela, J. (2007). (L. Squire, ed.