ABSTRACT
The research was conducted in Bangkinang Seberang district Kampar regency by observation
area. The purpose of this study is: to determine how the development of the door frame industrial in
Kampar regency ...
The research was conducted in Bangkinang Seberang district Kampar regency by observation area. The purpose of this study is: to determine how the development of the door frame industrial in Kampar regency of Riau Province. ...