Sari, Elvita; Rusliadi; Usman M.Tang
(2013-07-05)
This Research was conducted from February until March 2013 at PT.
Langkat Laut Timur in Kelurahan Beras Basah Kecamatan Pangkalan Susu
Kabupaten Langkat Sumatera Utara. The aim of the research was to investigate
the ...