Heisei 18-nendo rōdōryoku jukyū no suikei
By: [henshū Rōdō Seisaku Kenkyū Kenshū Kikō]
Series: JILPT shiryō shirīzu -- no. 23
Publisher: Rōdō Seisaku Kenkyū Kenshū Kikō
Published: 2007
Place of publication: Tōkyō
Language: jpn
Number of pages: 53
Other titles: Rōdōryoku jukyū no suikei