in this 9th meeting the group presentations 5 nah in this group of five moderators ikhsan vigianto nah I like the moderator he gestures the voice was smooth so once I am a listener bener bener ngerasain more presentations and there are 3 members of tri diasmoko, budianto, and , selamet riadi, its members yes ordinary aja nyajiin material such as read his tenses and others, miss rella tetep aja benerin mistakes the material, during the presnetasi of his material there must be wrong. "his material on "engineread bamboo for structural applications".