Rondhi M., and Kondo T. (2014) Smallholding rubber farming in Indonesia: Is it efficient?. Journal of Rural Economics, Special Issue 2013, 89-96.
Takahashi T., Aizaki H., Sato T., Guo N., Nakashima Y., Ogawa S., Yamada N., and Zheng X. (2013) In-crisis delivery rate: a novel measure of success in communal water management. Paddy and Water Environment, 11, 503-511.
Aizaki H. (2011) Basic functions for supporting an implementation of choice experiments in R, Journal of Statistical Software, 50(Code Snippet 2), 1-24.