Gaya APA
Arifin, Arief. (2001).
Hutan & Kehutanan (ed.1).
Medan:
Kanisius.
Gaya Chicago
Arifin, Arief.
Hutan & Kehutanan.
ed.1
Medan:
Kanisius,
2001.
PERTANIAN.
Gaya MLA
Arifin, Arief.
Hutan & Kehutanan.
ed.1
Medan:
Kanisius,
2001.
PERTANIAN.
Gaya Turabian
Arifin, Arief.
Hutan & Kehutanan.
ed.1
Medan:
Kanisius,
2001.
PERTANIAN.