APA Style
al, E., Singarimbun, M. (1986).
Factors affecting the use of childhood immunization in Indonesia .
Bangkok:
The population council, Badan Litbangkes.
MLA Style
al, Et., Singarimbun, Masri.
"Factors affecting the use of childhood immunization in Indonesia".
Bangkok:
The population council, Badan Litbangkes,
1986.
print.