Dr. Robert A. Morey's two books in one book entitled "How To Answer A Mormon" and "How To Answer A Jehovah's Witness" gives an unbiased history and refutation of the two organizations by quoting their own official documents and then comparing their doctrine to the Bible.
Dr. Robert A. Morey is internationally respected as one of the best theologians and apologists in the 21st century. He is the author of over 65 books. Dr. Morey's educational background includes Koine/Classical Greek, Hebrew, philosophy, etc. It should be noted that Dr. Morey as a young protégé with an IQ of 185 was selected by Yale University in the tenth grade of high school to become part of the School Mathematics Study Group (SMSG).