Bjerstedt, A. (Ake), 1930-  Bjerstedt, A. (Ake), 1930- <br/><br/>
Mapping the pheno-structure of didactic sequences. 

 - Malmo :  Dept. of Educational & Psychological Research, School of Education,  1964. 
 - Didakometry ;  no. 1 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Programmed instruction.