Columbia subject headings:
Metalworking industries--Nigeria--Osun State.
Metalworking industries--Nigeria--Oyo State.
Harvard subject headings:
Metalworking industries--Technological innovations--Economic aspects--Nigeria--Osun State.
Metalworking industries--Technological innovations--Economic aspects--Nigeria--Oyo State.
Small business--Technological innovations--Nigeria--Osun State.
Small business--Technological innovations--Nigeria--Oyo State.
Princeton subject headings: