Gaya APA
SUMITRO, Djoko. (1990).
English for science and technology .
Yogyakarta:
UGM Press.
Gaya Chicago
SUMITRO, Djoko.
English for science and technology.
Yogyakarta:
UGM Press,
1990.
Text.
Gaya MLA
SUMITRO, Djoko.
English for science and technology.
Yogyakarta:
UGM Press,
1990.
Text.
Gaya Turabian
SUMITRO, Djoko.
English for science and technology.
Yogyakarta:
UGM Press,
1990.
Print.