Ratna, Ratna, Univeritas Sumatera Utara
Ridha, Arrazy Elba, Author's name Arrazy elba is pleased by 'Nazaruddin' M.haikal karana Faculty / School Master in Industrial Engineering Jl. Almamater USU Complex, Indonesia Research on research conducted on Micro Business Groups in the city area of Medan, to see en
Rizkya, Indah, Universitas Sumatera Utara
Roesyanto, Roesyanto Roesyanto, University of Sumatera Utara, North Sumatera