At Eldin Jakupovic I found it:

Bosnia-Herzegovina U21 1 0
Switzerland U21 3 0
Switzerland U19 1 0

Is it right? Has he played in Bosnian and Swiss U21 too?
Hasn't he played in any A national team?

Both U21 seems to be correct http://en.wikipedia.org/wiki/Eldin_Jakupovi%C4%87

Read that page, and u'll find that he has got call-ups to the first team, but it doesnt say if he has played any games..

He played for Bosnia U21 in their 4 - 1 victory against Sam Marino U21 on 03.06.05 and for Switzerland U21 in their 3 - 3 draw with Rumania U21 on 26.04.06. Has not played in an A international yet