InDesign :: Create Table Of Contents (TOC) For Separate Languages In A Book

I'm having trouble trying to figure how to create a mini TOC in a book. The content of the book is divided in 6 files.
 
Sample of how it looks likes
 
1) - Front cover (Pg 1)
2) - EN (Pg 2-20)
3) - SE (Pg 21-40)
4) - DE (Pg 41-60)
5) - FR (Pg 61-80)
6) - ES (Pg 81-100)
 
From file 2-6 they have their own TOC. Simple and it works, since each file have their own list.
 
I'm trying to create a small TOC on the front cover telling me each page numbers for each language file/chapter.
 
EN............2-20
SE..........21-40
DE..........41-60
FR..........61-80
ES........81-100
 
At the moment, I do it manually. But, maybe there is no simple solution....