Aruga, Kentaka (2011): 非遺伝子組換え大豆とエネルギーの価格関係について. Published in: Papers on Environmental Information Science No. 25 (21. November 2011): pp. 85-88.
Aruga, Kentaka (2011): An intervention analysis on the Tokyo grain exchange non- genetically modified and conventional soybean futures market. Unpublished.
Aruga, Kentaka and Managi, Shunsuke (2011): Linkage among the U.S. Energy Futures Markets. Unpublished.
Aruga, Kentaka (2011): Linkages among the non-genetically modified soybean, conventional soybean, and corn futures markets in the Tokyo Grain Exchange. Unpublished.
Aruga, Kentaka and Managi, Shunsuke (2011): Price Linkages in the Copper Futures, Primary, and Scrap Markets. Published in: Resources, Conservation and Recycling , Vol. 56, (31. August 2011): pp. 43-47.
