Columbia subject headings:
Comprehension--Congresses.
Languages, Modern--Study and teaching (Secondary)--Congresses.
Languages, Modern--Study and teaching--Psychological aspects--Congresses.
Listening--Congresses.
Harvard subject headings:
Comprehension--Congresses.
Languages, Modern--Study and teaching (Secondary)--Congresses.
Languages, Modern--Study and teaching--Psychological aspects--Congresses.
Listening comprehension.
Listening--Congresses.
Princeton subject headings: