Teaching strategies  [motion picture] a system analysis (1-11) 

 - [S.l.] :  Open University,  [n.d.] 
 - 1 film reel (60 min.) :  sd., b. & w. ;  16 mm. 
<br/><br/> Vonvert into VHS 1/2 in.  Bahan rosak (Lupus)