It seems that Wikibooks uses the default maximum page size after expansion (2048kb).
However, a book is meant to be a large document, much larger than a standard wiki page or wikipedia page.
This results in certain book being incompletely rendered int the print version, eg https://en.wikibooks.org/wiki/Introduction_to_Software_Engineering/Print_version
There are at least 16 such incompletely rendered books, see https://en.wikibooks.org/wiki/Category:Pages_where_template_include_size_is_exceeded
For wikibooks, I propose to increase the maximum page size after expansion ($wgMaxArticleSize) eg to 8192kb.