An interview and a round‐table talk
by The Japan Petroleum Institute
(Lenggoro with other fellows from AIST, Kyoto Univ., Cosmo Oil Co. Ltd)

多国籍座談会：外国研究機関への留学で感じたこと、石油学会, Petrotech, Vol.36, No.4 (2013)

Cover:
http://sekiyu-gakkai.or.jp/jp/kankou/petro/petro36.pdf

For another Essay etc. = Lenggoro.blogspot.jp