Q. Do you have any academic books on ghosts or psychology?

There aren't many just on ghosts.  Most have to do with ghosts in literature or folklore.  But here are some you might look at:

• Possessions :the history and uses of haunting in the Hudson Valley / Judith Richardson. Main Library Stacks BF1472 .U6 R54 2003
• Ghosts :deconstruction, psychoanalysis, history / edited by Peter Buse and Andrew Stott. Main Library Stacks BF1471 .G48
• Appearances of the dead:a cultural history of ghosts / R. C. Finucane. Main Library Stacks BF1461 .F5 1984

This one is in Reference, which means it can't be checked out, but there is a scanner in the area, so you could copy some pages:

• The encyclopedia of ghosts and spirits / Rosemary Ellen Guiley ; [forewords by Tom Perrott and Troy Taylor].      Main Library Reference BF1461 .G85 2000 - x