Gaya APA
Irawan,{at.all}, P., B., Sudhakar, G. (1976).
The Metods and Materials of Demography .
Orlando:
Academic Press Inc.
Gaya MLA
Irawan,{at.all}, P., B., Sudhakar, G..
The Metods and Materials of Demography.
Orlando:
Academic Press Inc,
1976.
Text.