Well the problem with the Yugoslav wars is that they are still a very contentious issue, particularly for people who were personally affected by them or otherwise have some type of vested interest. So a lot of what you will read (in my opinion) will be swayed or influenced by this. I have yet to find something (book, article, documentary) that really takes an unbiased academic approach to the wars, as you would see with a book about the Carthaginian wars, for example. But, I like to believe what I'm about to list takes more than one view point: (disclaimer it is Serb centric)

The Ghosts of Medak Pocket - Carol Off -- This is actually Canadian Peacekeeper centric but it does discuss the war in Medak, Croatia between Serbs and Croats.

To Kill a Nation; The attack on Yugoslavia - Michael Parenti -- Slightly more left wing in nature, if I remember correctly (it has been a while since I read it) it discusses economics and greater geo-political issues that caused the wars and spurred intervention.

Long Shadows; Truth, Lies and History - Erna Paris -- This book isn't about Yugoslavia specifically but it has a chapter on it. The book's main discussion topic is why war crime / genocides happen.

Why Angels Fall; A journey through Orthodox Europe from Byzantium to Kosovo - Victoria Clark -- Again not Yugoslavia specific but it has a discussion on how the resurgence of religion after the fall of communism caused issues. (just a chapter or two)

The Serbs; History Myth and The Destruction of Yugoslavia - Tim Judah. -- I haven't actually finished reading this one yet been side tracked by other books, work and school But its about Serbs and Yugoslavia. (not having read it that's all I can offer on it).

Hope these help.

Edit: There are many many more articles /books that are out that and that I've read but that's all that is in my library.