TY  - GEN
AU  - Bagam, A. K. 
AU  - Wijesinghe, T.
TI  - Effectiveness of vocal hygiene education among primary school teachers in Kinniya educational zone
PY  - 2014///
CY  - Kelaniya
PB  - University of Kelaniya
KW  - Student Research Reports
N1  - Research Project
ER  -