• Strauss, A. & Corbin, J. (1994). Grounded theory methodology: An overview.
• Graue, M. E. & Walsh, D. J. (1998). Studying children in context: Theories, methods, and ethics.
• Dey, I. (1999). Grounding grounded theory: Guidelines for qualitative inquiry.

• Wertsch, J. & Tulviste, P. (1992). L. S. Vygotsky and contemporary developmental psychology.
• Schaffer, H. R. (1996). Joint involvement episodes as context for development.
• Werstch, J. V. (1985). Vygotsky and the social formation of mind.

• Fine, G. A. & Sandstrom, K. L. (1988). Knowing children: Participant observation with minors.
• Mandell, N. (1988). The least-adult role in studying children.
• Corsaro (1981). Entering the child's world: Research strategies for field entry and data collection in a preschool setting.

Play Methodology

• McCune-Nicolich, L. & Fenson, L. (1984). Methodological issues in studying early pretend play.

Ethological Methods

• Lehner, P. N. (1998). Handbook of ethological methods (2nd Ed.).