Interactive Modular Programming in Scheme. - Sho-Huan Simon Tung (LISP and Functional Programming, 1992)

Reliable Interactive Programming with Modules. - Sho-Huan Simon Tung; R. Kent Dybvig (LISP Symb. Comput., 1996)

Visualizing Evaluation in Scheme. - Sho-Huan Simon Tung (LISP Symb. Comput., 1998)

A visualisation approach to learning the concept of recursion. - Jihn-Chang J. Jehng; Sho-Huan Simon Tung; Ching-Tao Chang (J. Comput. Assist. Learn., 1999)