朝鲜出版物交流协会亚洲科杨润鲜给张亚的贺年卡 
1999.4.20 朝鲜出版物交流协会亚洲科长权昌林给张亚的信 The Letter From Kwon Chang Rim, Asia Section Chief of KPEA
2001.8.15 朝鲜出版物交流协会亚洲科长权昌林给张亚的信 The Letter From Kwon Chang Rim, Asia Section Chief of KPEA
2003.6.10 朝鲜出版物交流协会亚洲科杨润鲜给张亚的信 The Letter From Yang Yun Sun, Asia Section of KPEA
2003.6.27 张亚给杨润鲜的回信（节录） Excerpts of Zhang Ya's Reply to Yang Yun Sun, Asia Section of KPEA
2003.9.16 朝鲜出版物交流协会亚洲科杨润鲜给张亚的信 The Letter From Yang Yun Sun, Asia Section of KPEA
2003.10.16 朝鲜出版物交流协会亚洲科杨润鲜给张亚的信 The Letter from Yang Yun Sun, Asia Section of KPEA
2004.1.1 朝鲜出版物交流协会亚洲科杨润鲜给张亚的贺年卡 A New Year Card from Yang Yun Sun, Asia Section of KPEA
2004.2.16 张亚给杨润鲜的信（节录） Excerpts of The Letter from Zhang Ya to Yang Yun Sun, Asia Section of KPEA
2004.4.26 朝鲜出版物交流协会亚洲科杨润鲜给张亚的信（节录） Excerpts of The Letter From Yang Yun Sun, Asia Section of KPEA
2004.6.30 朝鲜出版物交流协会亚洲科杨润鲜给张亚的电子邮件（节录） Excerpts of The Email From Yang Yun Sun, Asia Section of KPEA
2004.8.10 张亚给杨润鲜的电子邮件（节录） Excerpts of The Email from Zhang Ya to Yang Yun Sun, Asia Section of KPEA
2004.9.8 张亚给杨润鲜的电子邮件（节录） Excerpts of The Email from Zhang Ya to Yang Yun Sun, Asia Section of KPEA
2004.11.6 张亚给杨润鲜的电子邮件 The Email from Zhang Ya to Yang Yun Sun, Asia Section of KPEA |