...า{{NoteTerm|ดัชนีสังเคราะห์}} (synthetic index) (cf {{RefNumber|13|2|5}}) จึงถูกนำมาใช้ในบ

...consisting of several words is printed in bold face it will appear in the index under each of the principal constituent words, e.g., "density of population ...Terms occurring in the notes which are not in the text are starred in the index and reference numbers.

* the Italian volume is almost finished (completion of the index ongoing);