00313nam a2200061Ia 4500245014700000100006300147008004100210 0aCOMPUTER-BASED EDUCATION AND TRAINING IN SOUTH AFRICA : past imperfect, present continuous! Future imperative? : a collection of case studies   a LIPPERT, Renate C.   Pretoria :   JL van Schaik,   1993  210818s9999    xx            000 0 und d