ISBN 4532319188 books & textbook
Yuni chāmu kyōshin no keiei : keieiryoku genbaryoku de sekai o mezasu
1961- Takahisa Takahara 高原 豪久
Tōkyō : Nihonkeizaishinbunshuppansha, 2014.6 /2014-06-01 Tankobon Hardcover
isbn-10: 4532319188 / isbn-13: 9784532319182
