TY  - BOOK
AU  - Bañaria,Maila O.
TI  - The relationship of selected variables to the level of difficulty in teaching sciences / 
U1  - 371.12 MAED 
PY  - 2016///
CY  - San Miguel, Iriga City
PB  - University of Saint Anthony
N1  - Includes bibliographic references .
ER  -