Some of the books and magazines that Ryuusei has appeared in are as follows.

1996.07.??	Seiyuu Grand Prix volume 7	article, MONO {6 P}
1998.10.25	Looker December 1998	81 DC article, COLOR {1 P}
1998.11.22	Voice Animage 23	article, MONO {3 P}
2004.10	HM3 SPECIAL vol 16	interview, COLOR {3 P}
2005.12	HM3 SPECIAL vol 29	article, COLOR {3 P}