An example illustrating modularity, abstraction & information hiding using.

Ivan B. Liss Thomas C. McMillan An example illustrating modularity, abstraction & information hiding using. 93-97 1989 conf/sigcse/1989 SIGCSE http://doi.acm.org/10.1145/65293.71195 db/conf/sigcse/sigcse1989.html#LissM89