workbooks

In the Japanese Version, there are 3 different subversion
(1) Standard:
(2) Energy: more enphasized on energy.
(3) Bio: more ennphasized on bio-process for waste treatment.

Arabian
(1) plan

Chinese
(1) plan

English
(1) Standard: ready
(2) Australian: ready

French
(1) Standard: ready by Nov. 2005

German
(1) Standard: plan

Korean
(1) Standard: being tested in Korea

Portuguese
(1) Brazilian Standard: in progress

Russian
(1) plan

Spanish
(1) Standard: in progress

Thai
(1) Standard: ready

Other languages
(1) under planning