TY  - BOOK
AU  - Espejo, Emily T. 
TI  - Implementation effectiveness of modular distance learning modalities in science: : basis for a proposed teachers' training program / 
U1  - TH 371.35 Es6i 2021 
PY  - 2021///
CY  - Polytechnic College of La Union : 
PB  - [s.n.], 
KW  - Distance education.
N1  - Bibliography: pages 101-104
ER  -