TY  - BOOK
AU  - Cheah,Kooi Guan
TI  - Learning at a distance : : from principles to proactice
SN  - 9838612758
U1  - 371.3509595 23
PY  - 2004///
CY  - Pulau Pinang : 
PB  - Penerbit Universiti Sains Malaysia , 
KW  - Distance education - Malaysia
ER  -