TY  - BOOK
AU  - Ju, Ye Rin.
TI  - The relationship of age and language proficiency for middle school students
AV  - PGS LB 3060.33 .J91 2009
PY  - 2009///
CY  - Las Piñas City, Philippines :  
PB  - Southville International School and Colleges,	
KW  - Language proficiency
KW  - Evaluation
KW  - Language acquisition
KW  - Age factors
KW  - Educational tests and measurements
KW  - Language ability
N1  - Includes bibliographical references
ER  -