Susan M. Merritt Charles J. Bruen J. Philip East Darlene Grantham Charles Rice Viera K. Proulx Gerry Segal Carol E. Wolf ACM model high school computer science curriculum (abstract). 309 1993 conf/sigcse/1993 SIGCSE http://doi.acm.org/10.1145/169070.169545 db/conf/sigcse/sigcse1993.html#MerrittBEGRPSW93