Kaigai toshi nanatsu no hoho: Kyujukyupasento no nihonjin wa shiranai shosha ichipasento no chofuyuso ni manabu.

by Yosuke Tamagawa Tankobon Softcover details (USA). ISBN: 978-4-8272-0730-9 ISBN-10: 4-8272-0730-5 Parushuppan. · 2012