Gaya APA
WIDODO, Y. (1992).
Technology development for root crops production in ndonesia .
Malang:
Lembaga penerbitan Universitas brawijaya.
Gaya MLA
WIDODO, Yudi.
"Technology development for root crops production in ndonesia".
Malang:
Lembaga penerbitan Universitas brawijaya,
1992.
Text.