Gaya APA
Lubis, Firman. (s.a.).
A Description of the Ketjamatan Serpong February 5th - April 1st 1972 .
s.l.:
Universitas Indonesia-Leyden State University.
Gaya Chicago
Lubis, Firman.
A Description of the Ketjamatan Serpong February 5th - April 1st 1972.
s.l.:
Universitas Indonesia-Leyden State University,
s.a..
Text.
Gaya MLA
Lubis, Firman.
A Description of the Ketjamatan Serpong February 5th - April 1st 1972.
s.l.:
Universitas Indonesia-Leyden State University,
s.a..
Text.
Gaya Turabian
Lubis, Firman.
A Description of the Ketjamatan Serpong February 5th - April 1st 1972.
s.l.:
Universitas Indonesia-Leyden State University,
s.a..
Print.