TY  - BOOK
AU  - Castillo, Ylaine Joyce Q. 
TI  - Utilization and effectiveness of activity sheets as distance learning materials in English / 
U1  - TH 371.33 C27u 2021 
PY  - 2021///
CY  - Polytechnic College of La Union : 
PB  - [s.n.], 
KW  - Teaching
KW  - Aids and devices.
N1  - Bibliography: pages 116-117
ER  -