Columbia subject headings:
Names, Personal--Yoruba.
Yoruba language--Grammar.
Yoruba language--Textbooks for foreign speakers--English.
Harvard subject headings:
Names, Personal--Yoruba
Yoruba language--Grammar.
Yoruba language--Textbooks for foreign speakers--English.
Princeton subject headings:
Names, Personal--Yoruba.
Yoruba language--Grammar--1950-.
Yoruba language--Textbooks for foreign speakers--English.