The actual conditions and problems of guide information signs for foreign tourists 論文 Tomoki Iwamoto・Shin Masuda・Masako Murota ·2011-03-10 ·『Toshi keikaku hokokushu/Toshi keikaku houkokushuu』 9(4) pp. 154-157 doi:10.11361/reportscpij.9.4_154