Gaya APA
UI, P. (1994).
CHEMICAL I THE ENVIRONMENT ISSUES RELATING TO AIR QUALITY AND WASTES .
JAKARTA:
UNIVERSITAS INDONESIA.
Gaya MLA
UI, PPSDM.
"CHEMICAL I THE ENVIRONMENT ISSUES RELATING TO AIR QUALITY AND WASTES".
JAKARTA:
UNIVERSITAS INDONESIA,
1994.
Text.