Gaya APA
Betsy, L, H, B, E, A. (1996).
Primary English Thematic Series (PETS) Coursebook 2A .
Singapore:
EPB Publisher.
Gaya MLA
Betsy, Lim, Hai, Boey, Et, Al.
"Primary English Thematic Series (PETS) Coursebook 2A".
Singapore:
EPB Publisher,
1996.
Text.