Dwyer, T. A. "Teacher/student authored CAI using the NEWBASIC system" p21-28

[ACM] (1972) [ACM] CACM 15(01) (Jan 1972)  

Languages mentioned Catalyst {1968} CATALYST/NBS {1972} Authoring/Programming environment at UoP NBS {1969} PIL/I {1967} Interactive naths system