Gaya APA
Nurhajati, . et al (1977).
TRS No. 18 Sources of Bias in the indonesian Quarterly Acceptor Survey and Their Adjustment .
Jakarta:
BKKBN.
Gaya MLA
Nurhajati, . et al.
"TRS No. 18 Sources of Bias in the indonesian Quarterly Acceptor Survey and Their Adjustment".
Jakarta:
BKKBN,
1977.
Text.