Gaya APA
Fithriadi, R. et al (1997).
Pengelolaan Sumberdaya Lahan Kering di Indonesia = Resource Management for Upland Areas in Southeast Asia: An Information Kit .
Jakarta:
Pusat Penyuluhan Kehutanan.
Gaya MLA
Fithriadi, Riri. et al.
"Pengelolaan Sumberdaya Lahan Kering di Indonesia = Resource Management for Upland Areas in Southeast Asia: An Information Kit".
Jakarta:
Pusat Penyuluhan Kehutanan,
1997.
TEXT BOOK.