His book misquoting Jesus is nothing more than a basic introduction to textual criticism for lay people.
bible.org/page.asp?page_id=3452
As for his other book, orthodox corruption of scripture see from world cat this thesis,
An examination of the orthodoxy of the variants in light of Bart Ehrman’s The Orthodox corruption of scripture
Stratton L Ladewig
2000
English Book : Thesis/dissertation/manuscript : Microform Archival Material Internet Resource iii, 80 leaves ; 28 cm.
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Series: Variation: Theological Research Exchange Network (Series) ;; #001-0759.
SUBJECT(S)
Descriptor: Heresies, Christian – History – Early church, ca. 30-600.
Named Person: Ehrman, Bart D. Orthodox corruption of scripture.
Jesus Christ – History of doctrines – Early church, ca. 30-600.
Title Subject: Bible. N.T. – Criticism, Textual.
Note(s): Includes bibliographical references (leaves 74-80)./ Dissertation: Thesis (Th. M.)–Dallas Theological Seminary, 2000./ Reproduction: Microfiche./ Portland, Or.

Theological Research Exchange Network,/ 2001./ 1 microfiche : negative./ (Theological Research Exchange Network ; #001-0759).
Class Descriptors: LC: BS2325.E473; Dewey: 225.06
Responsibility: by Stratton L. Ladewig.
Material Type: Thesis/dissertation (deg); Manuscript (mss); Microfiche (mfc)
Document Type: Book; Archival Material; Internet Resource
Entry: 20011010
Update: 20030131
Accession No: OCLC: 48120533
Database: WorldCat