Lenggoro was invited for an event of
The Association of Powder Process Industry and Engineering, JAPAN (APPIE)
As a panelist in a forum for young powder-technologist (from industries)

http://www.appie.or.jp/event/iinkai/h24/130327wakate.pdf

一般社団法人日本粉体工業技術協会 人材育成委員会
（通算 43 回）第 1 回「技術部門の若手のつどい」