TY  - BOOK
AU  -  Macale, Aprhodite M.
TI  - Development and Validation of Word Problems in Chemistry Gas Concepts
PY  - 2011///
PB  - Alipato: A Journal of Basic Education
KW  - EDUCATION
UR  - http://journals.upd.edu.ph/index.php/ali/article/view/2692/2522
ER  -