Whitney Houston's mom is pulling a Joe Jackson -- cashing in on her child's tragic death ... that's what some family members think of Cissy Houston's plans to write a tell-all book.
Sources close to the Houston family tell TMZ ... Cissy's new publishing deal with Harper-Collins for a memoir is merely a lame attempt to make money -- since Whitney left everything to Bobbi Kristina -- and not at all about honoring the late singer.
One source said the book -- which is slated for release next year -- could also be a PR move for Cissy, claiming ... "She will try to come out looking like the world's greatest mom, when in actuality, she wasn't."
Whitney Houston's Family
Cissy is EXPLOITING
Whitney's Death For Cash
6/10/2012 6:30 AM PDT BY TMZ STAFF
Get TMZ Breaking News alerts to your inbox