Gaya APA
Pakpahan, Helena Tatcher. (2017).
Penyuluhan Pertanian (cet.1.ed.1).
YOGYAKARTA:
Plantaxia.
Gaya Chicago
Pakpahan, Helena Tatcher.
Penyuluhan Pertanian.
cet.1.ed.1
YOGYAKARTA:
Plantaxia,
2017.
Text.
Gaya MLA
Pakpahan, Helena Tatcher.
Penyuluhan Pertanian.
cet.1.ed.1
YOGYAKARTA:
Plantaxia,
2017.
Text.
Gaya Turabian
Pakpahan, Helena Tatcher.
Penyuluhan Pertanian.
cet.1.ed.1
YOGYAKARTA:
Plantaxia,
2017.
Print.