Looking for "Guruguru" and "Chiisana Uta"

both are singles by Eufonius (J-rock/pop)

"Guruguru" (Released May 2, 2004)

1. "Guruguru"
2. "Hoshiwatari"
3. "Habataku Mirai"
4. "Guruguru" (without Riya)

"Chiisana Uta" (Released August 25, 2005)

1. "Chiisana Uta"
2. "Rakugaki"
3. "Shunkan"
4. "Chiisana Uta" (instrumental)

I don't care about the means of getting these singles (DDL ,torrent, megaupload, rapidshare, mediafire, etc) But I've been looking all over for these 2 singles.

Please help.