Yam, Philip  (1998, Winter).  Exploring intelligence: A search in the human, animal, machine and extraterrestrial domains,  [Special Issue].  Scientific American, 9(4).

Yam, Philip  (1998, Winter).  Intelligence considered,  [Special Issue].  Scientific American, 9(4). 6-11.

Yaroshevsky, V. A. (1990).  Lev Vygotsky. Moscow: Progress Publishers.

Youniss, J.  (1980).  Parents and peers in social development: A Sullivan-Piaget perspective.  Chicago: University of Chicago Press.

Zessoules, R., & Gardner, H.  (1991).  Authentic assessment: Beyond the buzzword and into the classroom.  In V. Perrone  (Ed.),  Expanding student assessment  (pp. 47-71).  Washington, D.C.: Association for Supervision and Curriculum Development.

Zessoules, R., Wolf, D. P., & Gardner, H.  (1988).  A better balance: Arts PROPEL as an alternative to discipline-based art education.  In J. Burton, A. Lederman, & P. London  (Eds.),  Beyond DBAE (disciplinary-based art education): The case for multiple visions of art education.  (pp. 117-129).  North Darthmouth, Massachusetts: Southeastern Massachusetts University Press.

Zimmerman, Marilyn P.  State of the Art in Early Childhood Music and Research.  ERIC Document  Reproduction Service No ED 250 068

Zurif, E. B., Caramazza, A., Foldi, N. S., & Gardner, H.  (1979, September).  Lexical semantics and memory for words in aphasia.  Journal of Speech and Hearing Research, 22(3), 456-467.

Zurif, E. B., Gardner, H., & Brownell, H. H.  (1979, July).  The case against the case against group studies.  Brain & Cognition, 10(2), 237-255.