(2018). Prospek perkebunan & industri minyak sawit di Indonesia 2019 - 2015 edisi 7. Business Information Focus.
Chicagoスタイル(17版)引用形式Prospek Perkebunan & Industri Minyak Sawit Di Indonesia 2019 - 2015 Edisi 7. Business Information Focus, 2018.
MLA(8版)引用形式Prospek Perkebunan & Industri Minyak Sawit Di Indonesia 2019 - 2015 Edisi 7. Business Information Focus, 2018.
警告: この引用は必ずしも正確ではありません.