Mark K. Singley. MOLEHILL: an instructional system for Smalltalk programming. In Scott P. Robertson, Gary M. Olson, Judith S. Olson, editors, Conference on Human Factors in Computing Systems, CHI 1991, New Orleans, LA, USA, April 27 - May 2, 1991, Proceedings. pages 439-440, ACM, 1991. [doi]
Abstract is missing.