Columbia subject headings:
Communication, International.
English language--Southeast Asia.
English language--Study and teaching--Southeast Asia.
English language--Variation--Southeast Asia.
Language policy--Southeast Asia.
Lingua francas--Southeast Asia.
Harvard subject headings:
Communication, International.
English language--Southeast Asia.
English language--Study and teaching--Southeast Asia
English language--Variation--Southeast Asia.
Language policy--Southeast Asia.
Lingua francas--Southeast Asia.
Princeton subject headings: