Seti   : mawasiliano thabiti : 1 kuelewa mawasiliano na vielelezo vya kuona 

 - Dodoma  : INADES-Formation Tanzania,  1990 
 - 39p.   : ill.   ; 21cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communication development<br/> Information service<br/>Tanzania<br/>Communication<br/>Audio visual aids<br/>Audio visual aids<br/> Networks analysis
<br/><br/><label>LC Class. No.: </label>EAF PAM BF637.L4M382