Gaya APA
Bakosurtanal, .
(1987).
Fourth full technical report 1 March 1987-1 June 1987
.
Cibinong:
Bakosurtanal.
Gaya MLA
Bakosurtanal, .
"Fourth full technical report 1 March 1987-1 June 1987".
Cibinong:
Bakosurtanal,
1987.
Text.