Reinforcement :  an in-service handbook for all teachers. 

 - [2nd adaptation / 
 - [Port Moresby] :  Dept. of Education,  1986. 
 - 22 p. :  ill. 
 - Teaching skills series ;  bk. 2 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Teaching.<br/>Reinforcement (Psychology).