The teaching of science and health, mathematics, and home economics, and practical arts: : ( teaching strategies III) 
Salandanan, Gloria G. 
 - revised edition. 
 -  Katha Publishing Co., Inc.,  1996 
 - 92 p. ;. 
9-71150114-7
F 372.37 Sa3t 1996
                        9-71150114-7
F 372.37 Sa3t 1996