the page I type doesn't show on citation when I cite a book on Ms office Word
I type the page when I cite a book
But it doesn't show on citation

But it doesn't show on citation

What you're typing in here in the page field (actually locator in CSL) is for the in-text part. Numeric styles often do not have this. In any case, this would be added like so: [1,p.30].
Your source, the Kolas A. source, is a book. A book does not need the "page" field since a book is a book, from its first to last page.
For book CHAPTERS this makes sense as it's a section of a book, hence you can specify the chapters pages where it appears in the book.