Gaya APA
Bakosurtanal, ., Sitompul, H, F. (1989).
Land resource evaluation and planning project ADB Loan No. 730-INO .
Cibinong:
Bakosurtanal.
Gaya MLA
Bakosurtanal, ., Sitompul, Hendrik, F.H..
"Land resource evaluation and planning project ADB Loan No. 730-INO".
Cibinong:
Bakosurtanal,
1989.
Text.